B.1 Thermal energy transfers _ Warmup

What is the particle arrangement in a solid?

• Flexible pattern

• Random

• Lattice structure

• No arrangement

Which state of matter has the lowest densities?

• Solids

• Liquids

• Gases

• Plasmas

In which state of matter do molecules have the most energy?

• solid
• gas
• liquid
• plasma

When a substance is heated, its molecules:

• Molecules lose energy and move slower
• Molecules gain energy and move slower
• Molecules lose energy and move faster
• Molecules gain energy and move faster

Which unit is used to express density?

• kilograms per square meter

• grams per liter
• pounds per square inch
• meters per second

The density of an object will increase if:

• Its mass increases and volume decreases

• Its mass decreases and volume increases

• Both its mass and volume increase

• Both its mass and volume decrease

A paving slab has a mass of 73 kg and dimensions 40 mm × 500 mm × 850 mm.

Calculate the density, in kg m^-3 of the material from which the paving slab is made.

• 4300 kg m^-3

• 43 kg m^-3

• 0.43 kg m^-3

• 430 kg m^-3

What is the equivalent temperature in degrees Celsius for 300 K?

• -27 °C

• 300 °C

• 0 °C

• 27 °C

The Kelvin scale is an absolute temperature scale because:

• It is based on the freezing and boiling points of water.
• It is used to measure temperature in space.
• It is the most commonly used temperature scale.
• It does not have negative values

What is the temperature at which water boils in Kelvin?

• 373 K

• 0 K

• 212 K

• 100 K