Physics Semester 2 Review

True or false: Heat moves from the cooler object to a warmer object

• True
• False

If two objects have different temperatures, heat will flow from the warmer object to the cooler one UNTIL ____________

• one reaches a temperature of zero
• they both have an equal temperature
• one runs out of energy

The transfer of thermal energy between objects of different temperatures is called...

• temperature
• heat
• internal energy
• none of these

What is 0^oC in Kelvin?

• 110 K
• 100 K
• 273 K
• 210 K

Recall the equation to calculate the change in heat (Thermal Energy) of an equation:

∆Q = mc∆T

If

∆Q = 100 J

m = 10 kg

∆T = 2 °C

What is c (in J/kgK) ?

• 20

• 5

• 25

• 200

[SPM2016]

1 cm³ of ethanol and I cm³ of water are poured onto a table. Ethanol evaporates faster compared to water because

• the density of ethanol is lower than the density of water

• the mass of ethanol is smaller than the mass of water

• the specific latent heat of ethanol is lower than the specific latent heat of water

• the specific heat capacity of ethanol is lower than the specific heat capacity of water

Who is responsible for finding the relationship that defines the period of the pendulum?

• Archimedes

• Galileo

• Newton

• Oppenheimer

12 kilograms = ___ grams

• 1000
• 12000
• 12
• 120

What is the amplitude of a wave?

• Where there is no wave movement

• The distance the wave oscillates from it's resting position

• A disturbance that transfers energy from one place to another

• The distance between two corresponding parts of a wave

Definition: Crest

• The highest point of a transverse wave

• The lowest point of a transverse wave

• The center of a transverse wave

• The distance between two points on a wave