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Force and Pressure– 1

Total questions: 56

Worksheet time: 39mins

Name
Class
Date
1.

To draw water from a well we have to (a)   at the rope.

2.

A charged body (a)   an uncharged body towards it.

3.

To move a loaded trolley we have to (a)   it.

4.

The north pole of a magnet (a)   the north pole of another magnet.

5.

The atmospheric pressure is due to the weight of (a)   present in the atmosphere above us.

6.

Force has (a)   as well as direction.

7.

Liquids exert equal pressure at the same (a)  

8.

Liquids and gases exert pressure on the (a)   of their containers.

9.

Air exerts pressure in all directions.

a)

True

b)

False

10.

The north pole of a magnet attracts the north pole of another magnet.

a)

True

b)

False

11.

The pressure exerted by a liquid depends on the area of base of its container.

a)

True

b)

False

12.

To draw water 'from a well, we have to apply push force at the rope.

a)

True

b)

False

13.

A force arises due to the interaction between two objects.

a)

True

b)

False

14.

The strength of a force is usually expressed by its magnitude.

a)

True

b)

False

15.

What is the unit of force?

a)
Meter (m)
b)
Second (s)
c)
Kilogram (kg)
d)
Newton (N)
16.

Give one example where force moves a stationary object.

a)

Lifting a box off the ground

b)

Pushing a car that has run out of gas

c)

Pulling a drawer to open it

d)
Watching TV
e)

When we push or pull a book on a table

17.

Give one example where force stops a moving object.

a)

A fielder on the ground stops a moving ball by applying a force with his hands

b)

Applying brakes in a moving vehicle to stop it


c)

A person catching a ball, bringing it to a stop

d)

A person using their hands to stop a moving bicycle

e)

A bird singing

18.

A ____________ is a push or a pull on an object.

a)

friction

b)

force

c)

magnet

d)

gravity

19.

Does liquid exert pressure in all directions?

a)

Yes

b)

No

20.
If the horse reared up on 2 legs what effect would it have on the pressure?
a)
it will exert half the pressure it did before
b)
it will exert the same pressure it did before
c)
it will exert twice the pressure it did before
d)
it will exert four times the pressure it did before
21.
A person wearing steel toe capped boots and a person wearing stilleto heels stand on a wooden floor. They both have the same weight. Which person exerts a greater pressure on the floor?
a)
The person wearing the boots because the boots have a larger surface area in contact with the floor
b)
The person with the stiletto heels because they have a larger surface area in contact with the floor
c)
The person wearing the boots because the boots have a smaller surface area in contact with the floor 
d)
The person with the stiletto heels because they have a smaller surface area in contact with the floor
22.

A force may bring a change in the state of motion of an object.

a)

True

b)

False

23.

The shape changes because our finger applies force on the tube.A toothpaste tube, when squeezed, changes its shape. This is a result of:

a)
Size of the toothpaste tube
b)
Pressure exerted by our finger
c)
Color of the toothpaste
d)
Temperature of the toothpaste
24.

(a)   force can be used to gather iron pins scattered on the floor.

25.

Which force do the animals apply while moving, chewing and doing other activities?

(a)  

26.

Which force is responsible for raising our body hair when we try to take off a terylene or polyester shirt in the dry weather?

a)
Gravity
b)
Magnetism
c)

Electrostatic force

d)
Friction
27.

Speed of moving a rubber tyre or a ring ____ whenever it is pushed.

a)
fluctuates
b)
decreases
c)
stays the same
d)
increases
28.
What is a force that works AGAINST MOTION?
a)
Force
b)
Motion
c)
Gravity
d)
Friction
29.

What is a force?

a)

the PUSH or PULL on an object

b)

The MOTION an object creates

c)

The objects HITTING one another

d)

Going REALLY FAST

30.
The force that acts in the opposite direction of motion when two surfaces come in contact. 
a)
Force
b)
Friction
c)
Static
d)
Kinetic 
31.
What direction does friction act relative to motion?
a)
in the same direction
b)
in the opposite direction 
c)
need more information
d)
depends on the force
32.

Friction _____________ motion

a)

Works in the same direction as

b)

Opposes

c)

Has not effect on

d)

Pulls against

33.

True or False: objects that are smooth have LESS friction than objects that are rough

a)

TRUE

b)

FALSE

34.

TRUE or FALSE if you push a box across a surface like Ice with no friction, it will NEVER stop

a)

TRUE, as long as it doesn't run into something it will keep going and going and going

b)

FALSE, it will stop very quickly

35.
How does friction affect speed?
a)
more friction decreases speed
b)
more friction increases speed
c)
less friction decreases speed
36.
What does friction produce?
a)
light
b)
sound
c)
heat
d)
gravity
37.
Pressure decreases when the surface area over which a force is applied increases
a)
True
b)
False
38.
Atmospheric pressure increases as you move towards lower elevations and decreases as you move into higher elevations.
a)
True
b)
False
39.

The snow shoes have large, flat soles so they exert less on the soft snow and stop the wearer from sinking into it.The design of snow shoes with large, flat soles, which exert less pressure on soft snow, preventing the wearer from sinking into it, is primarily due to:

a)
Having sharp edges to cut through the snow
b)
Having small, narrow soles to increase pressure on the snow
c)
Exerting less pressure on soft snow
d)
Being made of heavy material to compact the snow
40.
Force depends on
a)
Force
b)
mass
c)
acceleration
d)
mass and acceleration 
41.
The SI Unit of force is
a)
Pascal
b)
Meter/second
c)
Newton
d)
kg
42.

A woman has 4 type of shoes. Which will exert the greatest pressure on the ground when she wears them?

a)
b)
c)
d)
43.

Diagram below shows a water reservoir. The base of the wall is thicker because

a)

it will be more stable

b)

the density of the water is high

c)

pressure of the water is highest at the surface

d)

Pressure of the water is highest at the base

44.
This is an example of what kind of force?
a)
Balanced Force
b)
Pushing Force
c)
Gravity Force
d)
Unbalanced Force
45.
Which of these animals would probably cause the greatest pressure on the ground?
a)
A fat cow with big feet
b)
A fat cow with small feet
c)
 A calf with big feet
d)
A calf with small feet
46.

Magnetism is an example of...

a)

a gravitational force.

b)

a non-touching force.

c)

a touching force.

d)

a scientific model.

47.

Choose two correct applications that exert high pressure.

a)

Tractors have big and wide wheels

b)

Press a thumbtack into a plank

c)

Studs on the sole of football boots

d)

Shoulder pad for a school bag

48.

Amira puts two books on a table as shown in the diagram. The books are the same size and mass. Which book exerts greater pressure on the table?

a)

A

b)

B

49.

Why won't you sink in mud if you wear boots?

a)

Because the surface area is larger creating less pressure.

b)

Has air in it to keep you floating.

c)

Because the mud won't want you.

50.
Army tank tracks are useful for travelling through the mud because..
a)
they decrease the force the vehicle exerts on the ground
b)
they increase the force the vehicle exerts on the ground
c)
they decrease the pressure the vehicle exerts on the ground
d)
they increase the pressure the vehicle exerts on the ground
51.

Which of the following would increase the pressure?

a)

Increase the force

b)

increase the area

c)

Decrease the force and area

52.
Why does a boat come to rest when we stop rowing it?
a)
The boat is waiting for permission to move
b)

Friction between water and the boat brings it to a stop once we stop rowing.

c)
The boat is afraid of the water
d)
The boat gets tired and needs a break
53.
Write any two application of atmospheric pressure in our everyday life.
a)
Cooking food and generating electricity
b)
Measuring weather changes and creating suction in vacuum cleaners
c)
Controlling traffic lights and making ice cream
d)
Measuring body temperature and powering airplanes
e)

Drinking straws and droppers demonstrate the effects of atmospheric pressure.

54.
What happens to the springs fixed to the seat of a bicycle when we sit on it?
a)
The springs expand to release the weight.
b)
The springs detach from the seat.
c)
The springs turn into solid metal.
d)
The springs compress to absorb the weight.
55.
Give one practical application of magnetic force.
a)
Electric motors
b)
Building bridges
c)
Cooking food
d)
Writing a novel
e)

The closing of door of refrigerator works on the application of magnetic forces.

56.
Give one example from daily life where force changes the shape of an object.
a)
Squeezing a rubber ball.
b)
Stretching a rubber band.
c)
Folding a piece of paper.
d)
Bending a metal spoon.

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