Unit 1 Module 1 - Newtonian Laws - Step 1
Assignment Time: 15-20 MinutesDid you know that the fastest skier in the world has gone 155 miles per hour! That is fast! During this activity, you will observe both drag racing cars and skiers and watch for factors that influence how they change motion and speed.
Gathering
Unit 1 Module 1 - Newtonian Laws - Step 2To-Do Date: Sep 11 at 11:59pmReasoning
5. Answer the following questions on your assignment page (Links to an external site.)Links to an external site..
Unit 1 Module 1 - Newtonian Laws - Step 3To-Do Date: Sep 11 at 11:59pmBackground Knowledge:
Use the Chromebook to find the definitions for the following terms and write complete the Science Term Table on your assignment page (Links to an external site.)Links to an external site..
Science Terms
Force
Rest
Friction
Newton’s 1st Law of Motion
Newton’s 2nd Law of Motion (Include formula)
Newton’s 3rd Law of Motion
Unbalanced Force
Balanced Force
Net Force
Acceleration
Acceleration Formula
Velocity
Velocity Formula
Speed
Speed Formula
Momentum
Momentum Formula
Inertia
Unit 1 Module 1 - Newtonian Laws - Step 4To-Do Date: Sep 11 at 11:59pmStep 4 - Computer Simulations
TASK 1 - Net Force
Predicted Movement
Actual Movement
(none, left, right)
Sum of Forces
(0, x-left, x-right)
Same size, same placement on rope.
TASK 2 - Same Masses, Different Distances
Predicted Movement
Actual Movement
(none, left, right)
Sum of Forces
(0, x-left, x-right)
Same size, different placement on rope.
TASK 3 - Different Masses, Same Distance
Predicted Movement
Actual Movement
(none, left, right)
Sum of Forces
(0, x-left, x-right)
Different size, same placement on rope.
TASK 4 - Different Masses, Different Distances
Predicted Movement
Actual Movement
(none, left, right)
Sum of Forces
(0, x-left, x-right)
Different size, different placement on rope.
TASK 5 - Constant Force, Changing Mass
Mass
Push Force
Time to 40 m/s
Acceleration
50 kg
100N
100 kg
100N
200 kg
100N
300 kg
100N
TASK 6 - Constant Mass, Changing Force
Mass
Push Force
Time to 40 m/s
Acceleration
50kg
100N
50kg
200N
50kg
300N
50kg
400N
TASK 7 - Constant Mass, Changing Force
Mass
Push Force
Time to 40 m/s
Acceleration
50 kg
150N
50 kg
250N
50 kg
350 N
50 kg
450 N
TASK 8 - Graphing
Create a graph for each data table above on the Create a graph. (Links to an external site.)Links to an external site.website (or in Google Sheets) of your data.
Graph Data Table B - insert here
Graph Data Table C - insert here
Graph Data Table D - insert here
Graph Data Table E - insert here
Graph Data Table F - insert here
Graph Data Table G - insert here
TASK 9 - Collision Lab
Ball
Mass (kg)
Position (m)
Velocity (m/s)
Momentum (kg m/s)
1 (red)
1.0
2 (green)
1.0
8. Answer the following questions:
9. Change the velocity of ball-2 to 4.00 m/s, click “play” and watch what happens. Stop the simulation when both balls are off the screen. Record the data once the simulation is stopped in Data Table I below.
Data Table I
Ball
Mass (kg)
Position (m)
Velocity (m/s)
Momentum (kg m/s)
1 (red)
1.0
2 (green)
1.0
10. Answer the following questions
Ball
Mass (kg)
Position (m)
Velocity (m/s)
Momentum (kg m/s)
1 (red)
1.0
3.00
2 (green)
1.0
1.00
11. Answer the following questions
Unit 1 Module 1 - Newtonian Laws - Step 5 CommunicatingTo-Do Date: Sep 11 at 11:59pmStep 5 - Communicating
Write a CBEAR summary (at least one paragraph) explaining what you discovered about forces and motion. Also, in your paragraph, talk about the Newtonian Laws of Motion.
Assignment Time: 15-20 MinutesDid you know that the fastest skier in the world has gone 155 miles per hour! That is fast! During this activity, you will observe both drag racing cars and skiers and watch for factors that influence how they change motion and speed.
Gathering
- Watch video #1 (Links to an external site.)Links to an external site..
- Watch video #2 (Links to an external site.)Links to an external site.. (You only need to watch the first 5 minutes.)
- Watch video #3 (Links to an external site.)Links to an external site..
- As you watch the videos,
- focus on the stability and change in motion of the skiers, the drag racing cars and the dishes.
- Watch for factors that influence motion and speed.
- Record your observations and questions on your assignment page (Links to an external site.)Links to an external site..
Unit 1 Module 1 - Newtonian Laws - Step 2To-Do Date: Sep 11 at 11:59pmReasoning
5. Answer the following questions on your assignment page (Links to an external site.)Links to an external site..
- What do the skiers do to start moving?
- What do the cars do to start moving?
- What do skiers do to increase their speed?
- What do the cars do to increase their speed?
- What do the skiers do to get more lift or go longer in the air?
- What do the cars do to slow down and stop?
- Write a concluding paragraph explaining what you discovered about things that can change the motion of the cars and skiers.
Unit 1 Module 1 - Newtonian Laws - Step 3To-Do Date: Sep 11 at 11:59pmBackground Knowledge:
Use the Chromebook to find the definitions for the following terms and write complete the Science Term Table on your assignment page (Links to an external site.)Links to an external site..
Science Terms
Force
Rest
Friction
Newton’s 1st Law of Motion
Newton’s 2nd Law of Motion (Include formula)
Newton’s 3rd Law of Motion
Unbalanced Force
Balanced Force
Net Force
Acceleration
Acceleration Formula
Velocity
Velocity Formula
Speed
Speed Formula
Momentum
Momentum Formula
Inertia
Unit 1 Module 1 - Newtonian Laws - Step 4To-Do Date: Sep 11 at 11:59pmStep 4 - Computer Simulations
TASK 1 - Net Force
- Click on the following link or copy/paste it in your browser. http://phet.colorado.edu/en/simulation/forces-and-motion-basics (Links to an external site.)Links to an external site.
- Run the program titled Forces and Motion: Basics
- Select the Net Force (Tug of War tab) and begin.
- Place 2 people that are the same size the same distance away from the cart.
- Make a prediction about the movement of the cart.
- AFTER you have observed the actual movement, click on the sum of the forces box at the top right hand corner of the simulation. Record the number in Data Table A.
Predicted Movement
Actual Movement
(none, left, right)
Sum of Forces
(0, x-left, x-right)
Same size, same placement on rope.
TASK 2 - Same Masses, Different Distances
- Using the Net Force Simulation from above, place 2 people that are the same size different distances away from the cart.
- Place 2 people that are the same size different distances away from the cart.
- Make a prediction about the movement of the cart.
- AFTER you have observed the actual movement, click on the sum of the forces box at the top right hand corner of the simulation. Record the number in Data Table B.
Predicted Movement
Actual Movement
(none, left, right)
Sum of Forces
(0, x-left, x-right)
Same size, different placement on rope.
TASK 3 - Different Masses, Same Distance
- Using the Net Force Simulation from above, place 2 people that are different sizes the same distance away from the cart.
- Make a prediction about the movement of the cart.
- AFTER you have observed the actual movement, click on the sum of the forces box at the top right hand corner. Record the number in Data Table C.
Predicted Movement
Actual Movement
(none, left, right)
Sum of Forces
(0, x-left, x-right)
Different size, same placement on rope.
TASK 4 - Different Masses, Different Distances
- Using the Net Force Simulation from above, place 2 people that are the different sizes different distances away from the cart.
- Make a prediction about the movement of the cart.
- AFTER you have observed the actual movement, click on the sum of the forces box at the top right hand corner of the simulation. Record the number in Data Table D.
Predicted Movement
Actual Movement
(none, left, right)
Sum of Forces
(0, x-left, x-right)
Different size, different placement on rope.
TASK 5 - Constant Force, Changing Mass
- Go to the home screen, home icon on the bottom, click on the Friction Tab and check all the boxes in the upper right hand corner (Forces, Sum of Forces, Values, Masses, Speed). Spend a few minutes familiarizing yourself with the controls of the simulation before you begin the lab.
- Place one of the 50 kg boxes in the center of the track. Move the friction bar to “None”. Set the Applied Force box by entering 100 Newtons. You will start the force at the same time you start the stopwatch. You can do that by using the return key on the Simulation and the cursor on the stopwatch.
- You will allow the crate to accelerate to 40 m/s of velocity, which is full scale for the speedometer. Stop the stopwatch when the speed equals 40 m/s. Practice accelerating the carts a few times to ensure proper timing.
- When you get a run that you think is accurate, find the acceleration based on the change in velocity Δv and the change in time Δt (you know how to do that from Chapter 2!)
- Do the same procedure for masses of 100 kg (two crates), 200 kg (refrigerator) and 300 kg (fridge and two crates). Enter the results in Data Table E.
Mass
Push Force
Time to 40 m/s
Acceleration
50 kg
100N
100 kg
100N
200 kg
100N
300 kg
100N
TASK 6 - Constant Mass, Changing Force
- Still using the Friction tab, place the 50 kg box the center of the track. Move the friction bar to “None”. Set the Applied Force box by entering 100 Newtons. Again, you will start the force at the same time you start the stopwatch.
- Again, you will allow the crate to accelerate to 40 m/s of velocity, which is full scale for the speedometer.
- When you get a run that you think is accurate, find the acceleration.
- Do the same procedure for the same masses, but forces of 200N, 300N and 400N. Enter the results in Data Table F.
Mass
Push Force
Time to 40 m/s
Acceleration
50kg
100N
50kg
200N
50kg
300N
50kg
400N
TASK 7 - Constant Mass, Changing Force
- Still using the Friction tab, place the 50 kg box in the center of the track. Move the friction bar to “Lots”. Set the Applied Force box by entering 150 Newtons. Again, you will start the force at the same time you start the stopwatch.
- Again, you will allow the crate to accelerate to 40 m/s of velocity, which is full scale for the speedometer.
- When you get a run that you think is accurate, find the acceleration.
- Do the same procedure for the same masses and friction, but force of 250 N, 350 N, and 450N. Enter the results in Data Table G
Mass
Push Force
Time to 40 m/s
Acceleration
50 kg
150N
50 kg
250N
50 kg
350 N
50 kg
450 N
TASK 8 - Graphing
Create a graph for each data table above on the Create a graph. (Links to an external site.)Links to an external site.website (or in Google Sheets) of your data.
- Select "Bar" Graph
- Select "Data" Tab
- Label X axis "Ball"
- Label Y axis "Inches"
- Under "Item Label" enter the names of each of the balls you used.
- Under "Value" enter how far the card moved on average for each trial. (Enter numbers only, no letters).
- Click the "Preview" tab to check your graph.
- When done, click on the graph with two fingers, "copy image" and paste onto your assignment sheet below.
Graph Data Table B - insert here
Graph Data Table C - insert here
Graph Data Table D - insert here
Graph Data Table E - insert here
Graph Data Table F - insert here
Graph Data Table G - insert here
TASK 9 - Collision Lab
- Click on the following link or copy/paste it in your browser. http://phet.colorado.edu/en/simulation/collision-lab (Links to an external site.)Links to an external site.
- Click on the collision lab icon.
- Uncheck all boxes in the menu box and make sure that the slider for elasticity is placed to the far right.
- Move the sliders in the data table, on the bottom of the screen, so that the mass of ball-1 (red) and ball-2 (green) are both 1.0 kg.
- After adjusting the mass of ball-1 and ball-2. Click on the table that is labeled “More Data” on the bottom of the screen.
- Select “play” and watch what happens. Stop the simulation once both balls are off the screen.
- Using data table H below, record the data that appears on the “More Data” table.
Ball
Mass (kg)
Position (m)
Velocity (m/s)
Momentum (kg m/s)
1 (red)
1.0
2 (green)
1.0
8. Answer the following questions:
- Based on the recorded data, which object above is moving?
- What is the momentum of the moving object?
- What is the momentum of the object that is motionless?
- Based on the evidence above, what is the relationship between motion and momentum?
- If all other factors stayed the same, what would happen to the momentum of ball-1 if you doubled the mass of ball-1 to 2 kg?
- If all other factors stayed the same, what would happen to the momentum of ball-2 if you doubled the mass of ball-2 to 2 kg.
- Notice that your answer in question 10 showed that momentum would double if mass doubled, however, your answer in question 11 showed the momentum of ball-2 remained at 0 kg m/s even after you doubled its mass. How was it possible for ball-1 to experience a change in momentum while ball-2 did not? Examine the new data with your lab partner and explain why this happened.
9. Change the velocity of ball-2 to 4.00 m/s, click “play” and watch what happens. Stop the simulation when both balls are off the screen. Record the data once the simulation is stopped in Data Table I below.
Data Table I
Ball
Mass (kg)
Position (m)
Velocity (m/s)
Momentum (kg m/s)
1 (red)
1.0
2 (green)
1.0
10. Answer the following questions
- What is the new velocity of ball-2 since it has started moving?
- What is the new momentum since ball-2 has started moving?
- Change the position of ball-1 to 3.00 m and the position of ball-2 to 1.00 m. Click “play” and watch what happens. Stop the simulation when both balls are off the screen. Record the data once the simulation is stopped in Data Table J below.
Ball
Mass (kg)
Position (m)
Velocity (m/s)
Momentum (kg m/s)
1 (red)
1.0
3.00
2 (green)
1.0
1.00
11. Answer the following questions
- Did the position of ball-1 or ball-2 have any effect on momentum
- Which two variables have an effect on the momentum of an object?
Unit 1 Module 1 - Newtonian Laws - Step 5 CommunicatingTo-Do Date: Sep 11 at 11:59pmStep 5 - Communicating
Write a CBEAR summary (at least one paragraph) explaining what you discovered about forces and motion. Also, in your paragraph, talk about the Newtonian Laws of Motion.