Newton's Second Law

Question 1

The diagram shows every force acting on a 6.0 kg crate on a level floor. Right is positive. What is the crate's acceleration?

Accepted Answer

5.0 m/s² to the right

Answer

6.7 m/s² to the right

Answer

8.3 m/s² to the right

Answer

0.20 m/s² to the right

Question 2

The diagram shows every force acting on a 12 kg box on a level floor. Right is positive. What is the box's acceleration?

Accepted Answer

-2.0\,m/s^2

Answer

+2.0\,m/s^2

Answer

-3.5\,m/s^2

Answer

+5.0\,m/s^2

Question 3

The diagram shows every force acting on a 50 kg elevator car. Upward is positive. What is the elevator car's acceleration?

Accepted Answer

+2.6\,m/s^2

Answer

+12.4\,m/s^2

Answer

-2.6\,m/s^2

Answer

+22.2\,m/s^2

Question 4

The diagram shows every force acting on a 70 kg skydiver during a vertical fall. Downward is positive. What is the skydiver's acceleration?

Accepted Answer

+6.0\,m/s^2

Answer

+9.8\,m/s^2

Answer

+13.6\,m/s^2

Answer

-6.0\,m/s^2

Question 5

The diagram shows every force acting on a 4.0 kg cart. Right is positive. What is the cart's acceleration?

Accepted Answer

4.8 m/s² to the right

Answer

6.0 m/s² to the right

Answer

2.5 m/s² to the right

Answer

7.3 m/s² to the right

Question 6

The diagram shows every force acting on a 20 kg sled. Left is positive. What is the sled's acceleration?

Accepted Answer

+4.0\,m/s^2

Answer

+5.0\,m/s^2

Answer

+6.0\,m/s^2

Answer

-4.0\,m/s^2

Question 7

The diagram shows every force acting on an 8.0 kg wagon on a level floor. Right is positive. What is the wagon's acceleration?

Accepted Answer

-3.0\,m/s^2

Answer

+3.0\,m/s^2

Answer

-6.1\,m/s^2

Answer

+9.3\,m/s^2

Question 8

The diagram shows every force acting on a 0.50 kg puck on level ice. Right is positive. What is the puck's acceleration?

Accepted Answer

5.0 m/s² to the right

Answer

6.0 m/s² to the right

Answer

7.0 m/s² to the right

Answer

0.20 m/s² to the right

Question 9

The diagram shows every force acting on a 1500 kg car moving on a level road. Right is positive. What is the car's acceleration?

Accepted Answer

2.2 m/s² to the right

Answer

2.8 m/s² to the right

Answer

3.4 m/s² to the right

Answer

0.45 m/s² to the right

Question 10

The diagram shows every force acting on a 3.0 kg hanging mass. Downward is positive. What is the mass's acceleration?

Accepted Answer

+2.8\,m/s^2

Answer

-2.8\,m/s^2

Answer

+7.0\,m/s^2

Answer

+16.8\,m/s^2

Question 11

A single net force of 45 N acts east on a 15 kg cart. Taking east as positive, what is the cart's acceleration?

Accepted Answer

+3.0\,m/s^2

Answer

+0.33\,m/s^2

Answer

+675\,m/s^2

Answer

+30\,m/s^2

Question 12

The net force on a 3.0 kg cart is 18 N west. Taking east as positive, what is the cart's acceleration?

Accepted Answer

-6.0\,m/s^2

Answer

+6.0\,m/s^2

Answer

-0.17\,m/s^2

Answer

-54\,m/s^2

Question 13

A bicycle and rider have a combined mass of 50 kg, and the net force on the system is 250 N forward. What is the acceleration?

Accepted Answer

5.0 m/s² forward

Answer

0.20 m/s² forward

Answer

12,500 m/s² forward

Answer

200 m/s² forward

Question 14

A 600 kg sled has a net force of 1.2 10^3 N north. Taking north as positive, what is its acceleration?

Accepted Answer

+2.0\,m/s^2

Answer

+0.50\,m/s^2

Answer

+7.2 10^5\,m/s^2

Answer

+600\,m/s^2

Question 15

A 0.20 kg model car has a net force of -0.80 N along a straight track. What is its acceleration?

Accepted Answer

-4.0\,m/s^2

Answer

+4.0\,m/s^2

Answer

-0.25\,m/s^2

Answer

-0.16\,m/s^2

Question 16

The vertical net force on a 0.75 kg drone is 9.0 N upward. Taking upward as positive, what is the drone's acceleration?

Accepted Answer

+12\,m/s^2

Answer

+6.75\,m/s^2

Answer

+0.083\,m/s^2

Answer

+9.75\,m/s^2

Question 17

A low-friction cart of mass 0.012 kg experiences a net force of 3.6 10^-2 N east. What is its acceleration?

Accepted Answer

3.0 m/s² east

Answer

0.33 m/s² east

Answer

4.3 10^-4 m/s² east

Answer

0.024 m/s² east

Question 18

A 40 kg cart is already moving when the net force on it becomes 0 N. What is its acceleration at that instant?

Accepted Answer

0\,m/s^2

Answer

1.0 m/s² in the direction of motion

Answer

-1.0 m/s² opposite the motion

Answer

9.8 m/s² downward

Question 19

An 8.0 kg cart accelerates east at 1.5 m/s². What is the resultant of all the forces acting on the cart?

Accepted Answer

12 N east

Answer

5.3 N east

Answer

9.5 N east

Answer

0.19 N east

Question 20

A 1400 kg car speeds up uniformly along a straight level road at 2.5 m/s². What is the size of the resultant of all the forces acting on the car?

Accepted Answer

3500 N

Answer

35,000 N

Answer

560 N

Answer

0.0018 N

Question 21

A 0.060 kg tennis ball accelerates at 240 m/s² in the direction of the racket's push. What is the resultant force on the ball?

Accepted Answer

14.4 N in the direction of the push

Answer

4000 N in the direction of the push

Answer

4.0 N in the direction of the push

Answer

240 N in the direction of the push

Question 22

A net force of 96 N causes a lab cart to accelerate at 3.0 m/s². What is the cart's mass?

Accepted Answer

32 kg

Answer

288 kg

Answer

0.031 kg

Answer

99 kg

Question 23

A truck accelerates at 1.6 m/s² when the net force on it is 2.4 10^3 N. What is the truck's mass?

Accepted Answer

1.5 10^3\,kg

Answer

3.8 10^3\,kg

Answer

6.7 10^-4\,kg

Answer

2.4 10^3\,kg

Question 24

A 75 kg skateboarder accelerates at -0.80 m/s² along a straight path. What is the resultant of all the forces acting on the skateboarder?

Accepted Answer

-60 N

Answer

+60 N

Answer

-94 N

Answer

-74.2 N

Question 25

A lab cart accelerates at 2.5 m/s² when a net force of 10 N acts to the right. What is the cart's mass?

Accepted Answer

4.0 kg

Answer

25 kg

Answer

0.25 kg

Answer

12.5 kg

Question 26

A cart's mass stays the same while the net force on it doubles. What happens to the cart's acceleration?

Accepted Answer

It doubles.

Answer

It is cut in half.

Answer

It stays the same.

Answer

It becomes four times as large.

Question 27

Two carts experience net forces of the same size. Cart X has three times the mass of cart Y. How does cart X's acceleration compare with cart Y's?

Accepted Answer

It is one-third as large.

Answer

It is three times as large.

Answer

It is the same.

Answer

It is one-ninth as large.

Question 28

Which SI base-unit expression is equivalent to one newton?

Accepted Answer

1\,kg m/s^2

Answer

1\,kg m/s

Answer

1\,N m

Answer

1\,kg/s^2

Question 29

An object moves in a straight line at constant velocity. What must be true about the net force on it?

Accepted Answer

The net force is 0 N.

Answer

The net force points in the direction of motion.

Answer

The net force points opposite the motion.

Answer

The net force equals the object's weight.

Question 30

A 2.0 kg cart and a 4.0 kg cart have the same acceleration on a track. How do the required net forces compare?

Accepted Answer

The 4.0 kg cart requires twice the net force.

Answer

The 4.0 kg cart requires half the net force.

Answer

Both carts require the same net force.

Answer

The 2.0 kg cart requires four times the net force.

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Newton's Second Law

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Newton's Second Law

Ways to Play

Device Games: Students play on their phones

Blast Go

Zombie Escape

Avalanche

Maze Blast

Cave Climb

Blast Out

Mystery Auction

Tour Guide

Food Truck Rush

Tug of War

Alien Blast

Glacier Rush

Board Games: Teacher-led, projected to the class

Like what you see?

More like this

Bug Blast

BlastRace

BlastQuiz

BlastBoard

Seek & Destroy

Mystery Blast

Checkers

Texas Hold 'Em

Da Bomb

Castle Siege

Hot Potato

Market Mayhem

King of the Hill

Bank Heist

Top Corner