aos 1

Question 1

What is temperature a measure of?

Answer 1

Average translational kinetic energy of particles

Question 2

At what temperature does water freeze?

Answer 2

0 °C or 273.15 K

Question 3

What is the formula for calculating heat in a condensation process?

Answer 3

Q = mL

Question 4

What is the formula for calculating heat in a melting process?

Answer 4

Q = mL

Question 5

What is the speed of a wave if the wavelength is 2.5 m and frequency is 0.25 Hz?

Answer 5

0.625 m s−1

Question 6

What does Snell’s Law relate?

Answer 6

n2 = n1 sin𝜃1 / sin𝜃2

Question 7

According to the Stefan–Boltzmann Law, how does doubling the temperature affect power output?

Answer 7

Increases power by 16 times

Question 8

What is the specific heat capacity of water compared to aluminium?

Answer 8

Higher for water

Question 9

What is Wien’s Law used for?

Answer 9

Determining wavelength of peak radiation from hot objects

Question 10

What is the energy required related to the change in temperature by?

Answer 10

Q = mcAlΔT

Question 11

What is the formula to find the final temperature after heat transfer?

Answer 11

Tf = Ti + ΔTf

Question 12

What type of gases are nitrous oxide, ozone, and chlorofluorocarbon?

Answer 12

Greenhouse gases

Question 13

What happens in a mirage?

Answer 13

Occurs when the ground is very hot and the air is cool

Question 14

What effect do rising ocean temperatures have on evaporation?

Answer 14

Increases the amount of water vapour

Question 15

What is the heat lost by water formula?

Answer 15

Qlost = mwcwΔT

Question 16

How is heat transferred from the Sun to Earth?

Answer 16

By radiation

Question 17

What is an example of convection?

Answer 17

Heat transfer in fluids due to temperature differences

Question 18

Fill in the blank: The specific latent heat of fusion for water is represented as ______.

Answer 18

L

Question 19

True or False: Fluids that are warmer are less buoyant.

Answer 19

False

Question 20

What is the formula for calculating heat gained by aluminium?

Answer 20

Qgain = mAlcA1ΔT

Question 21

What is the wavelength of peak radiation emitted from a surface with a temperature of 446 K?

Answer 21

6.50 × 10−6 m

Question 22

What is the relationship between temperature and kinetic energy according to the kinetic theory of matter?

Answer 22

Temperature is a measure of average translational kinetic energy of particles

Question 23

What does the Stefan-Boltzmann Law state about power output related to temperature?

Answer 23

Power increases with the fourth power of temperature

Question 24

What does the term ‘thermal equilibrium’ refer to?

Answer 24

When two regions reach the same temperature

Question 25

Fill in the blank: The speed of light in a material can be calculated using ______.

Answer 25

v = c/n