DC --- heat

How is thermal energy transferred?

• from colder object to warmer object

• from warmer object to colder object

• at the equilibrium point

Tags

NGSS.MS-PS3-3

When thermal energy is transferred between objects, is work done on the object receiving the energy?

• Yes, because energy has moved a measurable distance

• No, because no force has acted over a distance

• No, because energy is not a physical object

Tags

NGSS.HS-PS3-4

What causes the transfer of thermal energy?

• compression forces

• molecular forces

• temperature differences

• contact forces

Tags

NGSS.MS-PS1-4

A form of energy

• Heat

• Temperature

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which of the following is NOT a unit of energy?

• joule

• watt

• calorie

• kilocalorie

Joule's famous experiment (shown in the diagram) demonstrated what important concept?

• the isolation of thermal energy

• the conversion factor of kilocalories to joules

• the mechanical equivalence of heat and work

• the second law of thermodynamics

Tags

NGSS.MS-PS3-4

Adding heat does not always result in a temperature change. When is this evident?

• After work is done on the system

• When a substance releases or absorbs radiation

• During a phase change (liquid to gas)

Tags

NGSS.MS-PS1-4

Joule's famous experiment used the change from GPE to PE to increase the temperature of the water in the container. How did the apparatus increase the thermal energy in the water?

• viscosity and turbulence increased the average kinetic energy of water molecules

• spontaneous energy transfer between the system and surroundings

• mechanical friction between the moving parts of the apparatus

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

NGSS.MS-PS3-5