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Chapter 4 Force

Total questions: 17

Worksheet time: 14mins

Name
Class
Date
1.

Name the missing force.

a)

weight force

b)

normal force

c)

frictional force

d)

tension force

2.

Fill in the blanks.

Whenever an object is moving, there is always_____________ opposing the motion.

a)

inertia

b)

momentum

c)

frictional force

d)

applied force

3.

The force exerted by ropes and chains is called

a)

tension

b)

normal

c)

elastic

d)

mechanical

4.

In a force diagram, or free-body diagram, the arrow shows______ of the force.

a)

relative strength

b)

relative distance

c)

relative direction

d)

resultant

5.

Which of the following is the same as INERTIA? (choose two)

a)

object at rest

b)

object moving at a constant velocity

c)

momentum

d)

force

6.

A box slides across a rough floor at a constant velocity. What are the forces acting on the box?

a)

friction, gravity

b)

friction, tension, gravity

c)

friction, normal force, gravity

d)

friction, normal force, net force

7.
What is the direction of the force of gravity acting on the box?
a)
down the ramp to the right
b)
straight up
c)
straight down
d)
up the ramp to the left
8.

A picture is hanging on a wall and does not move. The law related to the situation is

a)

Newton's 1st Law

b)

Newton's 2nd Law

c)

Newton's 3rd Law

d)

None of them

9.

Acceleration is produced when a force acts on a mass. The greater the mass (of the object being accelerated) the greater the amount of force needed (to accelerate the object).This statement is related to

a)

Newton's 1st Law

b)

Newton's 2nd Law

c)

Newton's 3rd Law

d)

None of them

10.

________________states that an object at rest will remain at rest unless acted on by an unbalanced force. An object in motion continues in motion with the same speed and in the same direction unless acted upon by an unbalanced force.

a)

Newton's 1st Law

b)

Newton's 2nd Law

c)

Newton's 3rd Law

d)

Einstein's Law

11.
This law is often called "the law of inertia."
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
d)
None of them
12.

When you step on a Lego. You push on the Lego and the Lego pushes back on you.The law related to the situation is

a)

Newton's 1st Law

b)

Newton's 2nd Law

c)

Newton's 3rd Law

d)

The Law of Conservation of Momentum

13.

Which activity would BEST demonstrate Newton's law of Inertia?

a)

A plate sits on a table top.

b)

A lady pushes a grocery cart.

c)

A child jumps on a trampoline.

d)

A boy swings a baseball bat.

14.

Which activity would BEST demonstrate the Law of Action/Reaction?

a)

A car traveling down the road.

b)

A rocket launching to space.

c)

A soccer ball sitting on the ground.

d)

A lady pushing a grocery cart.

15.

Any push or pull on an object is called __________.

a)

force

b)

velocity

c)

inertia

d)

momentum

16.

If there is no net force acting on an object, its means that

a)

A the object is moving with constant velocity.

b)

B the acceleration is zero.

c)

C the object is at rest.

d)

D all of above.

17.

Mass differs from weight such that

a)

A. All objects have weight but some lack mass.

b)

B. Mass can be expressed only in the SI unit.

c)

C. The mass of an object is always more than its weight.

d)

D. Weight is a force but mass is not.