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Physical Science Review

Total questions: 22

Worksheet time: 5hrs 1mins

Name
Class
Date
1.

The diagram below represents the path of a ray of light as it passes from air into the water in a pond.


The change in the direction of the ray of light as it enters the water is called

a)

absorption

b)

refraction

c)

reflection

d)

transmission

2.

Which process results in the formation of water on the outside of a cold glass of iced tea on a warm day?

a)

boiling

b)

condensation

c)

freezing

d)

evaporation

3.

Which model best represents the arrangement of atoms in a solid?

a)

A

b)

B

c)

C

d)

D

4.

Which model best represents the arrangement of atoms in a compound?

a)

A

b)

B

c)

C

d)

D

5.

Which graph best shows the general relationship between the temperature of a gas and the speed of the molecules in that gas

a)
b)
c)
d)
6.

As a candle burns, the chemical energy stored in the wax is transformed into

a)

heat and light

b)

heat and magnetism

c)

electricity and light

d)

electricity and magnetism

7.

Warm air rising in the atmosphere is an example of heat being transferred by

a)

absorption

b)

convection

c)

conduction

d)

radiation

8.

The diagram below represents two cans of water at the same temperature. One can is painted black and the other can is painted white. The cans are placed on a sunny windowsill, and a thermometer is placed in each can to measure the water temperature.


After four hours in the sunlight, the temperatures of the water in the cans will most likely be

a)

the same as when the cans were placed there

b)

higher, with the same temperature in both cans

c)

higher in the white can than in the black can

d)

higher in the black can than in the white can

9.

The diagram below represents a thermometer. Which principle best explains how this thermometer works?

a)

A liquid changes to a gas when heated.

b)

A gas changes to a liquid when heated.

c)

A liquid expands when heated and contracts when cooled.

d)

A liquid contracts when heated and expands when cooled.

10.

Which form of energy is almost always produced during energy transformations?

a)

heat

b)

light

c)

electricity

d)

sound

11.

As water is heated, the motion of the water molecules will generally

a)

decrease

b)

increase

c)

remain the same

12.

The diagrams below represent the same two magnets placed in four different positions. The North (N) and South (S) poles are labeled.


At which position will the force of attraction between these two magnets be greatest?

a)
b)
c)
d)
13.

The diagram below represents a weightlifter holding a barbell above his head.


The force of gravity pulling down on the barbell is 756 newtons (N). How many newtons of force are exerted by the weightlifter to hold the barbell up?

a)

0 N

b)

756 N

c)

378 N

d)

1512 N

14.

Which force will decrease if the surface of the ramp is made smoother?

a)

gravity

b)

magnetism

c)

friction

d)

eletricity

15.

A student added some sugar to a glass of water, but it did not dissolve quickly. What could the student do to increase the rate at which the sugar dissolves in the water?

a)

freeze the water

b)

heat the water

c)

add salt to the water

d)

filter the water

16.

A substance in the solid phase (state) of matter has

a)

a definite shape and a definite volume

b)

a definite shape, but no definite volume

c)

no definite shape, but a definite volume

d)

no definite shape and no definite volume

17.

A ball is dropped from the roof of a building. Points A, B, C, and D in the diagram below represent positions of the ball as it falls.


At which position will the ball have the greatest kinetic energy?

a)

A

b)

B

c)

C

d)

D

18.

If the temperature of the water in cup A continues to decrease as shown on the graph, what will the approximate temperature of the water in cup A be at the end of 25 minutes?

a)

25°C

b)

78°C

c)

30°C

d)

80°C

19.

If the aluminum bar were shorter, the cool water in cup B would increase in temperature at a faster rate because

a)

less heat would be produced by the water

b)

less heat would be lost to the surrounding air

c)

more heat would be produced by the water

d)

more heat would be lost to the surrounding air

20.

People often wear sunglasses in polar regions because most of the sunlight that strikes a snow-covered surface is

a)

reflected

b)

refracted

c)

absorbed

d)

transmitted

21.

Which process transfers heat when particles collide in a solid?

a)

convection

b)

radiation

c)

conduction

d)

evaporation

22.

In a car accident, a seat belt helps prevent injuries by applying a force

a)

less than the force of the moving passenger

b)

greater than the force of the moving car

c)

in the same direction as the car’s motion

d)

in the opposite direction of the passenger’s motion