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SUMMATIVE: FORCE AND MOTION

Total questions: 45

Worksheet time: 31mins

Name
Class
Date
1.

Write which law of motion do you recognize in this picture and explain what is happening with the balloon.

(Hint: here are some helpful words for you force, speed, accelerations)

4 lines
2.

Write which law do you recognize on this picture and explain what is happening to the apple.

4 lines
3.

Write which law or laws of motion do you recognize on this picture and what is happening to the boy and the car.

4 lines
4.

States when an object applies a force on another object, the second object applies a force of the same strength on the first object but the force is in the opposite direction

a)

Newton's Second Law of Motion

b)

Newton's Third Law of Motion

c)

Newton's First Law of Motion

d)

None of the above

5.

what is a force?

a)

a push or a pull

b)

change in displacement

c)

change in direction

6.

which of these is an effect of force?(tick mark the correct answers)

a)

force can start a motion

b)

force can stop a motion

c)

force can change the direction of motion

d)

force can change the shape of an object

e)

force can change the speed a moving object

7.

select the examples of contact forces.(tick mark the answers)

a)

normal reaction

b)

tension

c)

friction force

d)

gravitational force

e)

Applied Force

8.

what kind of force is shown in this picture?

a)

gravitation force

b)

electric force

c)

magnetic force

d)

friction force

9.

what force is applied on the book by the table.(represented by R)

a)

normal reaction

b)

friction force

c)

magnetic force

10.

what is the force used to attract the scarp iron?

a)

magnetic force

b)

tension

c)

electric force

d)

friction

11.
What type of force?
a)
Magnetic
b)
Gravitational
c)
Applied
d)
Normal
12.
Name the missing force....
a)
weight force
b)
normal force
c)
frictional force
d)
tension force
13.

A force exerted by a compressed or stretched spring upon any object that is attached to it.

a)

Spring Force

b)

Tension Force

c)

Elastic Force

14.
A buoyant force is an upward force applied on an object by a 
a)
Substance
b)
Fluid
c)
Pressure
d)
Displacement
15.
An object will _______ if the weight of it is equal to the weight of the water in which it is in. 
a)
Float
b)
Sink
c)
Expand
d)
Shrink
16.
An object will ______ if its' density is greater than the density of the fluid it is in. 
a)
Expand
b)
Shrink
c)
Float
d)
Sink
17.

What is the unit of force?

a)

Meter

b)

Newton

c)

Newton meter

d)

Centimeter

18.

Principle of moments states that an object is balanced when clockwise moments are equal to anticlockwise moments.

a)

True

b)

False

19.

Pivot is the point about which a force is turned by an object.

a)

True

b)

False

20.

The further the force is from the pivot, the greater its turning effect.

a)

True

b)

False

21.

What is the moment acting on the left side of the pivot?

a)

2 Nm

b)

20 Nm

c)

200 Nm

d)

0.2 Nm

22.

The beam is balanced.

a)

True

b)

False

23.

A force of 4 N acts on a lever 2 m from the pivot. What is the moment?

a)

8 Nm

b)

6 Nm

c)

2 Nm

d)

3 Nm

24.

James weighs 200 N and sits 1 m from the pivot. Jane weighs 100 N. How far from the pivot must Jane be to balance the beam?

a)

0.5 m

b)

1 m

c)

2 m

d)

4 m

25.

A cat weighing 50 N is 1 m from the pivot. How far away does a mouse weighing 0.5 N have to be to balance the beam?

a)

1 m

b)

10 m

c)

100 m

d)

1000 m

26.

A force exerts a moment of 2 Nm. What is the distance of the force from the pivot?

a)

1 m

b)

0.5 m

c)

0.2 m

d)

0.25 m

27.
What is the difference between particles in a gas and a solid?
a)
gas particles are closer together
b)
solid particles move faster than gas particles
c)
solid particles expand on heating
d)
gas particles have more kinetic energy than solid particles
28.
How can we increase the gas pressure inside a sealed container?
a)
Increase the number of particles inside the container
b)
Increase the temperature
c)
Decrease the volume of the container
d)
All of these
29.

If a hairspray can is heated, what can be expected of the pressure of the gas inside the can?

a)

The pressure will increase

b)

The pressure will decrease

c)

The pressure will remain constant

d)

The pressure will equalize

30.
Which of the following would increase the (gas) pressure of a system?
a)
Increase the Temperature
b)
Pump in more gas
c)
Decrease the volume
d)
All of these
31.
A _____________ is the scientific  instrument used to measure air pressure.
a)
barometer
b)
thermometer
c)
mercury
d)
watch
32.

The pressure inside the balloon will:

a)

Decrease

b)

Increase

c)

Remain the same

d)

Not enough information to formulate an answer

33.

We can increase the pressure of a gas by:

a)

Adding more gas.

b)

Reduce the volume of the container.

c)

Increase the temperature of the gas.

d)

None of the above answers.

34.

Correct statement is

a)

Gases at low pressure or high temperature behave as an ideal gas

b)

Gases at high pressure or low temperature behave as an ideal gas

c)

Gases at high density behave as an ideal gas

d)

None of the mentioned

35.

Cooking gas containers are kept in a lorry moving with uniform speed. The temperature of the gas molecules inside will

a)

Increase

b)

Decrease

c)

Remain the same

d)

Decreases for some, while increase for others

36.

The temperature of gas is held constant, while its volume is decreased. The pressure exerted by the gas on the wall of the container increases, because its molecules

a)

Strike the walls with higher velocities

b)

Strike the walls with large farce

c)

Strike the walls more frequently

d)

Are in contact with the walls for a shorter time

37.

Pressure rxerted by air on the earth's surface

a)

Pressure

b)

Atmospheric pressure

c)

Heat pressure

38.
Where would you find the largest pressure?
a)
At the bottom of the ocean
b)
At the top of Mt Everest
c)
Close to ground on the Scotch oval
d)
In a rockpool on the Great Barrier Reef
39.
Where is pressure the greatest on the dam?
a)
D
b)
C
c)
B
d)
A
40.
In what direction(s) does air exert pressure?
a)
everywhere
b)
no where
c)
there is no pressure
d)
downward
41.
What is altitude?
a)
how much something weighs
b)
the distance above sea level
c)
how big something is
d)
how far away something is
42.
Density of air is greater at high altitudes.
a)
true
b)
false
43.
Air pressure is greater _______.
a)
at the top of the mountain
b)
at the bottom of the mountain
c)
at the center of the mountain
44.

When a diver dives deeper into the ocean, he will experience ...................... liquid pressure

a)

greater

b)

less

c)

no

45.

Which layer of the atmosphere has the most mass? (80% of the mass actually!)

a)

stratosphere

b)

troposphere

c)

mesosphere

d)

thermosphere

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