Quiz about PS Unit 6

Question 1

What part of the wave is D?

Accepted Answer

Wavelength

Answer

Crest

Answer

Trough

Answer

Amplitude

Question 2

What part of the wave is A?

Accepted Answer

Crest

Answer

Trough

Answer

Amplitude

Answer

Wavelength

Question 3

What part of the wave is B?

Accepted Answer

Amplitude

Answer

Crest

Answer

Trough

Answer

Wavelength

Question 4

What part of the wave is C?

Accepted Answer

Trough

Answer

Crest

Answer

Amplitude

Answer

Wavelength

Question 5

What is the part of a longitudinal wave where the particles of the medium are close together?

Accepted Answer

compression

Answer

rarefaction

Answer

crest

Answer

trough

Question 6

What is the bending of a wave as it enters a new medium at an angle?

Accepted Answer

refraction

Answer

diffraction

Answer

reflection

Answer

interference

Question 7

A light ray hits a mirror, according to the law of reflection what would the ray's reflection look like?

Accepted Answer

Option D is correct

Answer

A.

Answer

B.

Answer

C.

Question 8

What travels faster light or sound?

Accepted Answer

light

Answer

sound

Question 9

Which wave of the EM spectrum has the highest frequency/most energy?

Accepted Answer

gamma ray

Answer

radio

Answer

visible light

Answer

x-ray

Question 10

As the wavelength of the wave decreases, the frequency _____________.

Accepted Answer

increases

Answer

slows down

Answer

disappears

Answer

decreases

Question 11

According to the Solubility Curves table, approximately how many grams of KNO₂ are needed to saturate 100 grams of

H2O at 32⁰C?

Accepted Answer

50

Answer

55

Answer

8

Answer

100

Question 12

When a substance changes from a liquid to a solid,

which of the following is true? (choose all that apply)

Accepted Answer

The particles are held more strongly to one another.

Accepted Answer

The substance is freezing.

Accepted Answer

The particles have less kinetic energy.

Answer

The particles have more kinetic energy.

Answer

The particles are bouncing faster into each other

Question 13

Sugar can melt, and sugar can dissolve. Choose each statement that explains what happens at the particle level when melting or dissolving occurs.

Accepted Answer

Sugar melts when kinetic energy increases enough for the particles to move

Accepted Answer

Sugar dissolves when a liquid breaks particles away from the solid substance

Answer

Sugar dissolves when its particles get soft enough to turn into liquid

Answer

Sugar dissolves when its particles are heated until the bonds holding them together as a solid break

Answer

Sugar melts when a liquid breaks particles away from the solid substance

Question 14

When the bonds break due to heat being added, a solid turns to a liquid. What occurred?

Accepted Answer

melting

Answer

freezing

Answer

condensation

Answer

sublimation

Question 15

When a gas turns back to a liquid due to heat being taken away, what is occurring?

Accepted Answer

condensation

Answer

sublimation

Answer

melting

Answer

deposition

Question 16

Engineers were working on plans to build a bridge. One plan had an expansion joint in the bridge and the other did not. Why was his the best plan?

Accepted Answer

Matter expands when it gets warmer in the summer, and contracts when it gets cooler in the winter.

Answer

Matter contracts when it gets warmer in the summer, and expands when it gets cooler in the winter.

Answer

When the average kinetic energy increases, it turns a solid into a liquid.

Answer

The average kinetic energy of the air around the road is constantly changing throughout the day

Question 17

Which temperature represents absolute zero?

Accepted Answer

0 K

Answer

00 C

Answer

273 K

Answer

273oC

Question 18

At what temperature will this substance begin to boil? (not water)

Accepted Answer

800C

Answer

100C

Answer

400C

Answer

1100C

Question 19

During the BC portion of the curve, the average kinetic

energy of the molecules of the substance

Accepted Answer

stays the same

Answer

increases

Answer

decreases

Question 20

The graph represents the heating of water in a pot. At 150 seconds, the water has just reached a boil. If the heat is left on, what will happen to the temperature of water in the pot? (All temperatures in ⁰C)

Accepted Answer

The temperature will remain constant

Answer

The temperature will rise

Answer

The temperature will fall

Question 21

As the wavelength of the wave decreases, the frequency _____________.

Accepted Answer

increases

Answer

slows down

Answer

disappears

Answer

decreases

Question 22

When a substance changes from a liquid to a solid, which of the following is true?

Accepted Answer

The particles are held more strongly to one another.

Answer

The particles have more kinetic energy.

Answer

The substance is freezing.

Answer

The particles have less kinetic energy.

Question 23

Sugar can melt, and sugar can dissolve. Choose each statement that explains what happens at the particle level when melting or dissolving occurs.

Accepted Answer

Sugar dissolves when a liquid breaks particles away from the solid substance

Answer

Sugar dissolves when its particles get soft enough to turn into liquid

Answer

Sugar melts when kinetic energy increases enough for the particles to move

Answer

Sugar dissolves when its particles are heated until the bonds holding them together as a solid break

Question 24

When the bonds break due to heat being added, a solid turns to a liquid. What occurred?

Accepted Answer

melting

Answer

freezing

Answer

condensation

Answer

sublimation

Question 25

When a gas turns back to a liquid due to heat being taken away, what is occurring?

Accepted Answer

condensation

Answer

sublimation

Answer

melting

Answer

deposition

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