Newton's First Law Review
A review of the basic concepts associated with Newton's First law such as Inertia,net Force and equilibrium
Questions and Answers
- 1.
Newton's First law is also known as the law of...
- A.
Movement
- B.
Complication
- C.
Inertia
- D.
Inability
- E.
Equal and oopposite forces
Correct Answer
C. InertiaExplanation
Newton's First Law states that an object at rest will remain at rest, and an object in motion will continue in motion with a constant velocity, unless acted upon by an external force. This concept is known as inertia, which refers to the tendency of an object to resist any change in its state of motion. Therefore, the correct answer is inertia.Rate this question:
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- 2.
An object in motion will _____________________ if the Net force acting on it is____
- A.
Stay in motion, 0 N
- B.
Accelerate, 0 N
- C.
Stay in motion,greater than 0 N
Correct Answer
A. Stay in motion, 0 NExplanation
Newton's first law is defined as an object in motion will stay in motion if the net fore acting on it is 0NRate this question:
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- 3.
If an object is in equilibrium its acceleration is _________ and its Net force is _____
- A.
Non-zero, non-zero
- B.
Zero,non-zero
- C.
Zero, zero
- D.
Non-zero,zero
Correct Answer
C. Zero, zeroExplanation
If the net force = 0 N, then the objects acceleration = 0 N. No net force = no accelerationRate this question:
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- 4.
Johnny pushes with a force of 50 N to the left, Jill pushes on the car with a force of 75 N to the right. What is the net force acting on the object?
- A.
125 N
- B.
100 N
- C.
50 N
- D.
25 N
- E.
0 N
Correct Answer
D. 25 NExplanation
When fores are going in opposite directions, you subtract ( or add a negative)- FNET= 75N - 50 NRate this question:
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- 5.
Johnny pushes with a force of 50 N to the left, Jill pushes on the car with a force of 75 N to the right. Is the object in equilibrium?
- A.
Yes
- B.
No
- C.
Maybe
Correct Answer
B. NoExplanation
If the net force is not zero, The object is not in equilibriumRate this question:
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- 6.
An object is moving at a constant velocity. If the Car requires 1000 N of force to propel it forward, What is the magnitue of the frictional force acting on the car?
- A.
0 N
- B.
500 N
- C.
1000 N
- D.
1500N
- E.
1000 N
Correct Answer
C. 1000 NExplanation
Since it is moving at a constant spee, the Net force on it )n, Which means it must be balanced by a force that is equal and opposite to the applied forceRate this question:
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- 7.
An object is moving at a constant velocity. If the Car requires 1000 N of force to propel it forward, Is the car in equilibrium?
- A.
Yes
- B.
No
- C.
Maybe
Correct Answer
A. YesExplanation
yes, Equilibrium describes constant motion. An object moving at a constant or uniform velocity is in equilibriumRate this question:
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- 8.
What is the approximate weight of a 10 kg dog?
- A.
1 N
- B.
10 N
- C.
100N
- D.
1000 N
Correct Answer
C. 100NExplanation
w=mg, w= 10kg *9.8m/s^2= 980N= 1000NRate this question:
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Current Version
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Mar 21, 2023Quiz Edited by
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Nov 21, 2009Quiz Created by
Barbvanatta
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