Download Newton`s Law

Name: _______________________________________
Complete the following questions while you explore the webquest on Newton’s 3 Laws.
Newton’s 1 Law (Law of Inertia)
st
https://www.wisc-online.com/learn/natural-science/physics/tp1202/newtons-first-law-of-motion
1. An object at ______________ stays at rest.
2. An object in motion stays in motion, in a _______________, unless acted
on by an external _____________________ force.
3. An object in motion stays in motion at ______ _______ in a _______
_______- unless an _______, ________ force acts on it.
4. What was the force that slowed the car in the animation?
5. What happened to the plane? What caused it?
15. Explain the results in the motion of a small mass and a large mass when
the same force is applied to each.
16. Write the formula used to calculate force (in BOTH ways):
17. The _____________ of an object is directly proportional to the net
_________ and inversely proportional to its ____________.
GO TO: http://teachertech.rice.edu/Participants/louviere/Newton/law2.html
Study the information and example on the page. Complete the following problem. SHOW ALL
OF YOUR WORK.
18. Carmen's bike, which weighs 100 kg, has a flat tire. Carmen is trying to
push the bike to her grandmother’s house & she makes the bike go .02
m/s2. Using Newton's Second Law, you can compute how much force
Carmen is applying to the bike.
6. What caused the soccer ball to change its motion?
GO TO: http://teachertech.rice.edu/Participants/louviere/Newton/law1.html Watch
the skateboarder animation.
7. What is the motion in this picture?
8. What is the unbalanced force in this picture?
9. What happened to the skater in this picture?
10. Describe what happens in the animation that shows why we wear seat belts.
EXPLAIN it using scientific terms & Newton’s 1st Law.
Newton’s Third Law
http://teachertech.rice.edu/Participants/louviere/Newton/law3.html
19. For every action there is an ______________ and ___________ reaction.
20. Give an example of Newton’s 3rd Law (other than a rocket) – Explain the
forces present.
Sir Isaac Newton
http://teachertech.rice.edu/Participants/louviere/Newton/newton.html
Newton’s 2nd Law of Motion (Law of Acceleration)
21. What is Sir Isaac Newton’s birthday? ____________________
11. An ____________ acting on an object causes it to ______________.
22. How old was he when he died?__________ What year did he die? ______
12. Acceleration is directly related to the size of ____________ in the same
direction of the force and must be in the same ________________ as the
acceleration (motion)
13. A LARGE force will cause a ____________ acceleration. A
___________________ force will cause a small acceleration.
23. Who raised Sir Isaac Newton? _____________________________
https://www.wisconline.com/learn/natural-science/physics/tp1302/newtons-second-law-of-motion
14. Acceleration is inversely related to the _______________ of an object.
24. What college did Sir Isaac Newton attend? ______________________
25. When was Sir Isaac Newton knighted? ___________________________
26. Beside motion, what other scientific topics Isaac Newton have ideas about?
Exploring Newtons’ Second Law using a Simulations
https://phet.colorado.edu/en/simulation/legacy/forces-1d
2. What did you notice about the magnitude of acceleration and the
quotient of force and mass?
Activity 1: Explore the SIM
Spend 5 minutes exploring the sim. Find out the following:
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How do you select an object? How do you change the mass of the object?
How do you apply a push? How do you change the force of the push?
How do you determine the total (net) force being applied to the object?
Can you turn the free body diagram on?
How can you find out about the motion of the object?
Can you quantify the acceleration of the object?
Can you turn friction off?
How do you ‘reset’ the sim?
What other settings can you change? Should these be changed?
Are you able to record your experiments so you can review what happened?
Activity 2: Explore the effect of force on acceleration (with no friction)
BEGIN ACTIVITY:
Start by turning friction off.
Select an object for Joe to push.
Record the mass of the object.
Have Joe push the object with different magnitudes of force, record the
acceleration of the object for each force.
Calculate the quotient of force and mass (force ÷ mass)
Total force (N)
Acceleration (m/s2)
Activity 3: Explore the effect of force on acceleration (with friction)
Repeat the experiment from activity 2, but this time have friction turned on.
4. DO YOU THINK you will you be able to use the rule you developed in
activity 2? EXPLAIN why or why not.
5. How will adding friction change your results?
1. Prediction: What effect will increasing the force have on the
acceleration of an object?
Mass of object (kg)
Keep this constant
3. In your own words, write a rule to describe the relationship between
force mass and acceleration.
Activity 3 Results
Mass of object (kg)
Keep this constant
Total force (N)
Acceleration (m/s2)
F
m
F
m
6. How did your results from activity 3 compare to your results from
activity 2?
7. Explain the relationship between the force applied to an object, the
mass of an object and the acceleration of the object.
Activity 4: Using what you have learned·
8. Now let’s see if you can apply what you have learned. Some of the cells
in the table below have been left blank. Predict what the answer should
be, then use the simulation to find out if you were correct.
Total Force
Mass
Acceleration
Predicted
Simulation
2
(N)
(kg)
(m/s )
answer
answer
200
10
?
500
20
?
?
50
10
?
100
15
250
?
5
1000
?
20
?
150
15
?
250
25