Quiz about Sc 7 P 10 3

Question 1

Light waves travel the fastest in

Accepted Answer

vacuum of empty space

Answer

solid

Answer

liquid

Answer

gas

Question 2

When light waves move from a vacuum into a solid, their speed will

Accepted Answer

decrease

Answer

increase

Answer

stay the same

Question 3

What is this a picture of?

Accepted Answer

refraction

Answer

reflection

Question 4

Sound waves travel the fastest in

Accepted Answer

solid

Answer

liquid

Answer

gas

Answer

vacuum of empty space

Question 5

Light waves travel the slowest in

Accepted Answer

solid

Answer

liquid

Answer

gas

Answer

vacuum of empty space

Question 6

If a sound waves moves from a gas to a liquid, the sound wave will

Accepted Answer

speed up

Answer

slow down

Answer

not change speed

Question 7

If a light waves moves from a gas to a liquid, the light wave will

Accepted Answer

slow down

Answer

speed up

Answer

not change speed

Question 8

If the sun's light travels from the atmosphere into the ocean, the speed of the sun's light wave will

Accepted Answer

decrease

Answer

increase

Answer

stay the same

Question 9

Compared to light waves, sound waves travel

Accepted Answer

not at all in a vacuum

Answer

faster in a vacuum

Answer

slower in a vacuum

Answer

at the same speed in a vacuum

Question 10

If sound waves move from a solid to a gas, their speed will

Accepted Answer

decrease

Answer

increase

Answer

not change

Question 11

What does refraction mean?

Accepted Answer

bending light

Answer

bouncing light

Question 12

When light strikes an object, it can do all of the following, except...

Accepted Answer

Be produced

Answer

Be reflected

Answer

Be refracted

Answer

Be absorbed

Question 13

What is it called when light waves enter a substance?

Accepted Answer

absorption

Answer

refraction

Answer

reflection

Answer

energy

Question 14

The pitch of a sound wave describes how low or high it sounds to the human ear. Pitch and frequency are

related. Which of the following best describes this relationship?

Accepted Answer

The higher the frequency, the higher the pitch of the sound.

Answer

The lower the frequency, the higher the pitch of sound.

Answer

The lower the frequency, the slower the speed of sound.

Answer

The higher the frequency, the lower the pitch of the sound.

Question 15

Sound waves can move at different speeds. What can affect the speed at which sound waves travel?

Accepted Answer

the material through which sound waves travel

Answer

the amplitude of sound wave

Answer

the distance over which sound waves travel

Answer

the frequency of sound waves

Question 16

Sound waves travel at different speeds through different materials. Through which of the following materials

will sound waves travel the fastest?

Accepted Answer

copper pipe

Answer

swimming pool

Answer

air on a cold day

Answer

sauna filled with steam

Question 17

Sound waves and light waves behave differently in different materials. How are sound waves different from light waves?

Accepted Answer

Sound waves cannot travel through a vacuum.

Answer

Light waves cannot travel through a vacuum.

Answer

Only sound waves can pass through a material.

Answer

Only light waves can pass through a material.

Question 18

What happens to the speed of a sound wave as it passes from the air into the ground?

Accepted Answer

it increases

Answer

it decreases

Answer

it remains constant

Answer

it immediately stops

Question 19

Which choice identifies a property of sound waves?

Accepted Answer

They will travel faster through Solid materials and get progressively slower through liquids and gases

Answer

They travel fastest through liquids and gases, not through solids.

Answer

They will travel at the same speed through every type of material.

Answer

They travel Slowest through solids and liquids, not through gases.

Question 20

The pitch of a sound wave describes how low or high it sounds to the human ear. Pitch and frequency are related. Which of the following best describes this relationship?

Accepted Answer

The higher the frequency, the higher the pitch of the sound.

Answer

The higher the frequency, the lower the pitch of the sound.

Answer

The lower the frequency, the slower the speed of sound.

Answer

The lower the frequency, the higher the pitch of sound.

Question 21

What is the atomic number of the element with the symbol 'Sc'?

Accepted Answer

21

Answer

20

Answer

22

Answer

23

Question 22

Which element is represented by the symbol 'P'?

Accepted Answer

Phosphorus

Answer

Potassium

Answer

Platinum

Answer

Palladium

Question 23

What is the atomic number of the element with the symbol 'P'?

Accepted Answer

15

Answer

14

Answer

16

Answer

17

Question 24

How many valence electrons does the element with atomic number 10 have?

Accepted Answer

8

Answer

2

Answer

4

Answer

6

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