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Unit Test: Forces

Total questions: 20

Worksheet time: 3hrs 20mins

Name
Class
Date
1.

Which of the following can exert more force, a 3 year old child or a 25 year old guy?

a)

A 25 year old guy

b)

A 3 year old child

c)

Both of them are equal

d)

None of them can exert force

2.

What will happen if the two boys exerted the same strength in pulling the rope?

a)

The rope will move to the left.

b)

The rope will move to the right.

c)

The rope will not move.

d)

The rope will become shorter.

3.

How much is the total resultant force if Man A kicked the ball to the right with 10N while Man B kicked it with 25N to the left?

a)

35 N to the right

b)

0 N

c)

15 N to the right

d)

15 N to the left

4.

If Man A pulled the table to the left using 7N and Man B pulled the same table to the right using 14N, then what would be the resultant force and its direction?

a)

7 N going to the left

b)

7 N going to the right

c)

21 N going to the left

d)

21 N going to the right

5.

If Boy A pushed the box to the right using 27 N force and Boy B pushed the same box to the left using 34 N,

then what would be the resultant force and its direction?

a)

7 N going to the left

b)

7 N going to the right

c)

21 N going to the left

d)

21 N going to the right

6.

__________ is the force that acts in the opposite direction of the moving object.

a)

Gravitational force

b)

Resultant force

c)

Frictional force

d)

Magnetic force

7.

Friction produces unnecessary heat and _______.

a)

shade

b)

noise

c)

attraction

d)

direction

8.

The rougher the two surfaces in contact, the _________ will the friction between them.

a)

lesser

b)

greater

c)

longer

d)

shorter

9.

_________________ is a single force that has the same effect on the object as all the individual forces are acting together.

a)

Frictional force

b)

Gravitational force

c)

Magnetic force

d)

Resultant force

10.

What is the use of the arrow in finding the resultant force?

a)

It shows the height and the length of the force acting on an object.

b)

It shows the magnitude and the direction of the force acting on an object.

c)

It shows the weight and the length of the force acting on an object.

d)

It shows the size and the shape of the force acting on an object.

11.

It is the push or pull acting on an object.

a)

Force

b)

Gravity

c)

Magnetism

d)

Friction

12.

What is used to measure the force?

a)

Beaker

b)

Spring balance

c)

Erlenmeyer flask

d)

Test tube

13.

What is the unit of force?

a)

Kilograms

b)

Milligrams

c)

Newtons

d)

Ounce

14.

Which of the following does not belong to the group?

a)

Friction slows down moving object.

b)

Friction produces heat and noise.

c)

Friction wears out contacting surfaces.

d)

Friction enables us to stay still.

15.

Friction ___________ and smoothens the surfaces that are in contact.

a)

stops

b)

slows down

c)

sharpens

d)

moves

16.

What are the two factors that affect the friction?

a)

Weight and texture

b)

Length and height

c)

Magnitude and direction

d)

Size and shape

17.

Which of the following shows that friction enables the objects to stay still.

a)

We can put our bag on the chair.

b)

She puts her laptop on the table.

c)

The boy stands up on the floor.

d)

All of the above

18.

Which activities show that friction slows down moving objects.

a)

The girl writes a letter using her pen.

b)

The ship is sailing in the ocean.

c)

The father stops the car.

d)

The sole of his shoes are already worn out.

19.

Where is the direction of the friction if the boy kicks the ball to the right?

a)

to the right

b)

to the left

c)

downward

d)

upward

20.

Which of the following surface can produce more friction?

a)

towel

b)

bubble wrap

c)

sand paper

d)

cardboard