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Physical Science Sem 2 Final Review

Total questions: 65

Worksheet time: 33mins

Name
Class
Date
1.

Which letter shows a rarefaction?

a)

A

b)

B

c)

C

2.

Which letter shows a compression?

a)

A

b)

B

c)

C

3.

Which letter shows a wavelength?

a)

A

b)

B

c)

C

4.

Electrical wires sometimes have a plastic coating wrapped around them. How does this make the wires safer to handle?

a)

Plastic is smooth and not easily frayed

b)

Plastic will melt if the wires overheat

c)

Plastic does not react chemically with air

d)

Plastic is a good insulator

5.

Is chemical energy a type of potential or kinetic energy?

a)

Potential

b)

Kinetic

6.

Is elastic energy a type of potential or kinetic energy?

a)

Potential

b)

Kinetic

7.

Is gravitational energy a type of potential or kinetic energy?

a)

Potential

b)

Kinetic

8.

Is nuclear energy a type of potential or kinetic energy?

a)

Potential

b)

Kinetic

9.

Is radiant energy a type of potential or kinetic energy?

a)

Potential

b)

Kinetic

10.

Is thermal energy a type of potential or kinetic energy?

a)

Potential

b)

Kinetic

11.

Which of Newton's Laws says: An object at rest stays at rest while an object in motion stays in motion

a)

First

b)

Second

c)

Third

12.

Which of Newton's Laws says: For every action, there is an equal and opposite reaction

a)

First

b)

Second

c)

Third

13.

Which of Newton's Laws says: Force is related to mass and acceleration (F=ma)

a)

First

b)

Second

c)

Third

14.

Why are fossil fuels (such as coal and gas) considered to be nonrenewable resources?

a)

They are being used faster than they are produced

b)

They are being used as fast as they are produced

c)

They contain hydrocarbons

d)

They are no longer being produced

15.

Waves transfer...

a)

Matter and energy

b)

Energy only

c)

Matter only

16.

Which of the following is a type of wave?

a)

Crest

b)

Frequency

c)

Seismic

d)

Trough

17.

True or False: All objects in the universe attract one another

a)

True

b)

False

18.

The amount of matter in something determines its

a)

Energy

b)

Magnetism

c)

Mass

d)

Weight

19.

The negatively charged particles in an atom are the...

a)

negatrons

b)

protons

c)

neutrons

d)

electrons

20.

When a rollercoaster rides along its tracks, the tracks get really hot. Which force explains the phenomenon?

a)

Frictional Force

b)

Air Resistance Force

c)

Normal Force

d)

Tension Force

21.

Which type of energy is associated with moving objects or objects that could move later?

a)

Thermal

b)

Radiant/Light

c)

Electromagnetic

d)

Mechanical

22.

Which type of energy from waves such as light, radio, or x-rays?

a)

Thermal

b)

Radiant/Light

c)

Electromagnetic

d)

Mechanical

23.

Which type of energy is associated with heat?

a)

Thermal

b)

Radiant/Light

c)

Electromagnetic

d)

Mechanical

24.

Which type of energy is associated with moving electrons and magnetism?

a)

Thermal

b)

Radiant/Light

c)

Electromagnetic

d)

Mechanical

25.

A(n) _____ is formed by placing a piece of iron inside a current carrying wire

a)

electromagnet

b)

force of gravity

c)

pole

d)

current

26.

What is the net force on this box?

a)

18 N right

b)

0 N

c)

5 N left

d)

9 N left

27.

A magnet exerts a force on...

a)

magnets

b)

magnetic materials

c)

charged objects

d)

non-magnetic materials

28.

As the size of two charges (q) increases, the force between them...

a)

increases

b)

decreases

c)

stays the same

29.

Which part of the electromagnetic spectrum can we see?

a)

UV rays

b)

Visible light

c)

Microwave

d)

Infrared rays

30.

A(n) ____ is a push or a pull that one body exerts on another

a)

acceleration

b)

force

c)

motion

d)

velocity

31.

____ is a measure of average kinetic energy

a)

Temperature

b)

Heat

c)

Thermal energy

d)

Total energy

32.

What type of energy does a skydiver falling towards earth have?

a)

Kinetic only

b)

Potential only

c)

Kinetic and potential

33.

In which medium would sound travel most quickly?

a)

Liquid

b)

Solid

c)

None (i.e. space)

d)

Gas

34.

What is the gravitational potential energy of a dictionary that has a mass of 5.0 kg and is located 2.0 m above the ground (g = 10)

GPE = mgh

a)

100 J

b)

200 J

c)

5 J

d)

2 J

35.

If charges have the same sign (e.g. both positive), they...

a)

attract

b)

repel

36.

If charges have the opposite sign (e.g. one positive, one negative), they...

a)

attract

b)

repel

37.

The total kinetic and potential energy of the particles in matter is its

a)

absolute value

b)

heat

c)

temperature

d)

thermal energy

38.

Sounds are produced by

a)

frequencies

b)

vibrations

c)

reverberations

d)

pitch

39.

True or False: At the same temperature, 1 kg of water has the same amount of energy as 2kg of water

a)

True

b)

False

40.

Does the following scenario best represent Newton's first, second, or third law:

A full garbage truck takes 15 seconds to reach 30 mph. An empty garbage truck takes 5 seconds to reach the same speed

a)

First

b)

Second

c)

Third

41.

As the distance between two objects increase, the force of gravity between them...

a)

increases

b)

decreases

42.

What is the force required to throw a baseball that has a mass of 1kg with an acceleration of 30 m/s2? (F=ma)

a)

30 N

b)

3 N

c)

90 N

d)

15 N

43.

As the mass of an object increases, the force of gravity

a)

increases

b)

decreases

44.

A student slides down a straight slide. Assuming there is no friction, at which location on the slide does the student have the greatest amount of kinetic energy?

a)

At the top of the slide

b)

In the middle of the slide

c)

At the bottom of the slide

d)

It's equal at all parts of the slide

45.

Does the following scenario best represent Newton's first, second, or third law:

A cannon moves backward after firing

a)

First

b)

Second

c)

Third

46.

Which of the following is a force?

a)

Friction

b)

Velocity

c)

Inertia

d)

Acceleration

47.

The ____ is the combination of all forces acting on an object

a)

inertia

b)

direction of motion

c)

force pair

d)

net force

48.

Which term best describes the forces on an object with a net force of zero?

a)

Balanced forces

b)

Unbalanced forces

c)

Acceleration

d)

Inertia

49.

The graph shows the kinetic energy of a falling rock. At what time does the rock hit the ground?

a)

1s

b)

2s

c)

3s

d)

4s

50.

Which depends on gravity: mass or weight?

a)

Weight

b)

Mass

51.

What type of energy is the energy stored in the nucleus of an atom

a)

Nuclear

b)

Gravitational

c)

Elastic

d)

Chemical

52.

What type of energy is the energy stored in chemical bonds?

a)

Nuclear

b)

Gravitational

c)

Elastic

d)

Chemical

53.

What type of energy is the energy an object has because of its height above the ground?

a)

Nuclear

b)

Gravitational

c)

Elastic

d)

Chemical

54.

What type of energy is the energy stored in a stretched or pressed object?

a)

Nuclear

b)

Gravitational

c)

Elastic

d)

Chemical

55.

Which type of heat transfer is does not require matter?

a)

Convection

b)

Conduction

c)

Radiation

56.

Which type of heat transfer is through the direct contact of particles?

a)

Convection

b)

Conduction

c)

Radiation

57.

Which type of heat transfer is through the movement of matter?

a)

Convection

b)

Conduction

c)

Radiation

58.

Which of the metals pictured is the best conductor of thermal energy?

a)

Nickel

b)

Copper

c)

Iron

d)

Brass

59.

The regions on a magnet where the magnetic force is the strongest is called the ____

a)

north side

b)

center

c)

electromagnet

d)

pole

60.

If a skater sits at the top of a ramp, not moving, with a potential energy of 200J, what will their energy be at the bottom of the hill?

a)

100 J

b)

200 J

c)

0 J

d)

400 J

61.

Does the following scenario best represent Newton's first, second, or third law:

A magician can do the tablecloth trick by quickly pulling the table cloth out, leaving the dishes undisturbed

a)

First

b)

Second

c)

Third

62.

A girl on a roller skates accelerates at a rate of 5 m/s2 with a force of 250 N. What is her mass? ( m = f/a)

a)

50 kg

b)

5 kg

c)

25 kg

d)

10 kg

63.

A book sliding across a horizontal table slows down and comes to a stop. The book's kinetic energy was converted into what form of energy?

a)

Mechanical

b)

Gravitational

c)

Thermal

d)

Chemical

64.

Which of the following cannot happen, according to the law of conservation of energy?

a)

Energy cannot be converted

b)

Energy cannot be changed

c)

Energy cannot be created

d)

Energy cannot be destroyed

65.

Which types of waves can travel through a vacuum (e.g. space)?

a)

Seismic

b)

Light

c)

Mechanical

d)

Sound