Quiz about CP Physical Science Forces Test Review

Question 1

1. Newton's 1st law states that an object

Accepted Answer

all of these statements are true.

Answer

at rest will remain at rest unless acted on by an outside force.

Answer

will continue moving at the same velocity unless an outside force acts on it.

Answer

will continue moving in a straight line unless an outside force acts on it.

Question 2

2. A 10-N force and a 30-N force act in the same direction on an object. What is the net force on the object? 
(Hint: You may draw a FBD on scratch paper to help you decide.)

Accepted Answer

40 N

Answer

30 N

Answer

20 N

Answer

10 N

Question 3

3. If the force of gravity (weight) on a balloon is 3000 N, and the air resistance is 3300 N, in which direction is the net force acting?
(Hint: You may draw a FBD on scratch paper to help you decide.)

Accepted Answer

upward

Answer

downward

Answer

there is no net force

Question 4

4. In which case will the object have the greatest acceleration?

Accepted Answer

B

Answer

A

Answer

C

Answer

D

Question 5

5. In which case will the object have the least acceleration?

Accepted Answer

A

Answer

B

Answer

C

Answer

D

Question 6

6. How much does a 2 kg bag of nails weigh?

Accepted Answer

19.6 N

Answer

9.8 N

Answer

7.2 N

Answer

4.8 N

Question 7

7. A girl and a boy pull in opposite directions on strings attached to each end of a spring scale. Each child exerts a force of 20N. What is the NET FORCE acting on the scale?

Accepted Answer

0 N

Answer

10 N

Answer

20 N

Answer

40 N

Question 8

8. An object being pulled across the floor is moving at a constant velocity. Which of the following statements is true?

Accepted Answer

The net force on the object is zero.

Answer

There are no forces acting on the object.

Answer

There is no frictional force acting on the object.

Question 9

10.  If the force acting on an object cart is doubled, what happens to the acceleration of the cart?

Accepted Answer

acceleration doubles

Answer

acceleration doesn't change

Answer

acceleration triples

Answer

acceleration decreases by half

Question 10

11. If you push against a wall, the wall pushes back against you with ____________ force.

Accepted Answer

equal

Answer

no

Answer

less

Answer

more

Question 11

12. In what direction does friction act with respect to the motion of a sliding object?

Accepted Answer

in the opposite direction

Answer

in the same direction

Answer

in a perpendicular direction

Answer

depends on the motion of the object

Question 12

13. If there was no friction or barier, a ball rolling on a horizontal surface would

Accepted Answer

keep rolling forever at the same speed.

Answer

eventually come to rest.

Answer

eventually speed up.

Answer

stop immediately.

Question 13

15. In the free body diagram shown, which of the following is the gravitational force (weight) of the car?

Accepted Answer

14,700 N

Answer

5,800 N

Answer

13,690 N

Answer

775 N

Question 14

16.  Two apples, one red and one green,  are sitting on a table.  The red apple weighs 1.5 N while the green apple has a mass of 1.5 kg.  Which apple has the largest weight?

Accepted Answer

the green apple

Answer

the red apple

Answer

both have the same weight

Question 15

17. A golf club hits a golf ball with a force of 2300 N. The golf ball hits the club with a force __________.

Accepted Answer

exactly 2300 N

Answer

slightly less than 2300 N

Answer

slightly more than  2300 N

Answer

0 N

Question 16

18. The acceleration due to gravity is ________.

Accepted Answer

-9.8 m/s/s

Answer

-9.8 kg

Answer

-9.8 m/s

Answer

-9.8 N

Question 17

19. As the force acting on an object decreases, the acceleration of the object _______________ (mass is kept constant)

Accepted Answer

decreases

Answer

increases

Answer

stays the same

Question 18

20. As the mass of an object increases, the acceleration of that object _____________ (force is kept constant)

Accepted Answer

decreases

Answer

increases

Answer

stays the same

CP Physical Science Forces Test Review

24 questions

1. Newton's 1st law states that an object

2. A 10-N force and a 30-N force act in the same direction on an object. What is the net force on the object? (Hint: You may draw a FBD on scratch paper to help you decide.)

3. If the force of gravity (weight) on a balloon is 3000 N, and the air resistance is 3300 N, in which direction is the net force acting? (Hint: You may draw a FBD on scratch paper to help you decide.)

4. In which case will the object have the greatest acceleration?

5. In which case will the object have the least acceleration?

6. How much does a 2 kg bag of nails weigh?

7. A girl and a boy pull in opposite directions on strings attached to each end of a spring scale. Each child exerts a force of 20N. What is the NET FORCE acting on the scale?

8. An object being pulled across the floor is moving at a constant velocity. Which of the following statements is true?

9. A change in the force of gravity acting on an object will affect the object’s

10. If the force acting on an object cart is doubled, what happens to the acceleration of the cart?

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