Newton's Second Law Review

21 Questions | By Lavertyd | Last updated: Mar 22, 2022 | Total Attempts: 59

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1.

Which equation below represents the mathematical expression of Newton's second law of motion?
- A.
  
  F = m/a
- B.
  
  F = m x a
- C.
  
  F x m = a
- D.
  
  F x a = m
2.

Doubling the mass of an object has what effect on acceleration?
- A.
  
  Doubles accleration
- B.
  
  Halves accleration
- C.
  
  Has no affect
- D.
  
  Banana
3.

Acceleration is....
- A.
  
  Always in the direction of motion.
- B.
  
  Can be either in the direction of the net force, or opposite
- C.
  
  Caused by balanced forces
- D.
  
  Always in the direction of the net force
4.

Mass is _________________ proportional to acceleration.
- A.
  
  Inversely
- B.
  
  Directly
- C.
  
  Equally
- D.
  
  Banana
5.

Force is _________________ proportional to acceleration.
- A.
  
  Inversely
- B.
  
  Directly
- C.
  
  Equally
- D.
  
  Banana
6.

If an object is traveling to the right and slowing down, the direction of the net force is...
- A.
  
  To the right
- B.
  
  To the left
- C.
  
  Straight up
- D.
  
  No net force
7.

An arrow is fired straight up into the air. After it leaves the bow the direction of the acceleration is...
- A.
  
  Up
- B.
  
  Down
- C.
  
  No acceleration, its motion is uniform
- D.
  
  No force, so no acceleration
8.

Two vehicles are parked on an incline at the top of a hill. One is a small car, the other a very massive truck. You release the parking brake of each at the same time. All other factors being equal, which vehicle accelerates faster?
- A.
  
  The car
- B.
  
  The truck
- C.
  
  They accelerate equally with gravity
- D.
  
  There is no acceleration, only uniform motion
9.

The car and the truck accelerate down the hill and reach a flat level surface at the bottom. Which vehicle will coast farther and take longer to come to rest?
- A.
  
  The car
- B.
  
  The truck
- C.
  
  They will travel the same speed
- D.
  
  They will get there at different times but stop at the same distance
10.

An object weighs 30N on earth. A second object weighs 30N on the moon. Which the greater mass? (Note: due to its size, the moon has less gravity than the earth.)
- A.
  
  Object on the moon
- B.
  
  Object on earth
- C.
  
  Same mass
- D.
  
  Depends on air resistance
11.

Doubling the net force on an object has what effect on acceleration?
- A.
  
  Doubles accleration
- B.
  
  Halves accleration
- C.
  
  Has no affect
- D.
  
  Banana
12.

Compared to a 1kg block of solid iron, a 2kg block of solid iron has twice as much
- A.
  
  Inertia
- B.
  
  Mass
- C.
  
  Volume
- D.
  
  All
- E.
  
  None
13.

A 10kg block is pushed across a horizontal surface with a horizontal force of 20N against a friction force of 10N. The acceleration of the block in meters per second per second is
- A.
  
  1
- B.
  
  5
- C.
  
  2
- D.
  
  10
14.

A water skier has a mass of 79 kg and accelerates at 1.4 m/s². What is the net force acting on the skier?
- A.
  
  110.6
- B.
  
  56.4 N
- C.
  
  110.6 Kg
- D.
  
  110.6 N
15.

What is the mass of an object if it takes a net force of 32 N to accelerate it at a rate of 0.88 m/s² ?
- A.
  
  28.2 N
- B.
  
  36.4 Kg
- C.
  
  34.6 N
- D.
  
  36.4 N
16.

A net force of 15 N is applied to a cart with a mass of 2.1 kg. How long will it take the cart to travel 2.8 m, starting from rest?
- A.
  
  2.55 s
- B.
  
  .86 s
- C.
  
  31.5 s
- D.
  
  .39 s
17.

A car has a mass of 820 kg. It starts from rest and travels 41 m in 3.0 s. What is the net force applied to the car?
- A.
  
  7471 N
- B.
  
  3735 N
- C.
  
  2780 N
- D.
  
  6882N
18.

What is the acceleration of a box weighing 666 N if a force of 777 N is applied to it?
- A.
  
  15.8 m/s/s
- B.
  
  12.6 m/s/s
- C.
  
  54 m/s/s
- D.
  
  11.4 m/s/s
19.

A 120 N force is applied to a block, causing an acceleration of 22.5 m/s². What is the mass of the block?
- A.
  
  33.5 kg
- B.
  
  5.33 kg
- C.
  
  12 kg
- D.
  
  8.7 kg
20.

A student tests the second law of motion by accelerating a block of ice at a rate of 3.5 m/s². If the ice has a mass of 12.5 kg, what force must the student apply to the ice?
- A.
  
  47.35kg
- B.
  
  43.75kg
- C.
  
  47.35N
- D.
  
  43.75N
21.

A block pushed with a force of 13.5 N accelerates at 6.5 m/s² to the left. What is the mass of the block?
- A.
  
  4 kg
- B.
  
  2 kg
- C.
  
  87.75 kg
- D.
  
  .5 kg