Unit 3 Heat

What happens to particles as they heat up?

• They slow down
• Nothing
• They don't move
• They speed up

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

In which state of matter are molecules moving the slowest?

• solid
• liquid
• gas
• all of the above

Tags

NGSS.MS-PS1-4

A high specific heat means...

• It heats up quickly with energy added
• It requires more energy to change temperature

Tags

NGSS.HS-PS3-4

Heat transfer always goes from-

• Cold to Hot
• Hot to Cold
• Heat doesn't transfer
• Freezing to Cold

Tags

NGSS.HS-PS3-4

The water in each is the same temperature. Which container has the most thermal energy?

• The one on the left, because there is more matter
• The one on the right because there is less matter
• They have the same amount of thermal energy

Tags

NGSS.HS-PS3-4

Everything has heat

• True
• False

Tags

NGSS.HS-PS3-4

If the specific heat of water is 4.18 J/g∙°C, how much heat is required to increase the temperature of 1.2 g of water from 23 °C to 39 °C?

• -80.3 J

• 44.9 J

• 80.3 J

• 112.5 J

Tags

NGSS.HS-PS3-4

What would be the effect on the particles if more heat is supplied to the system?

• They would slow down
• They would stop moving
• They would speed up
• There would be no effect

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

A sample of iron receives 50.J of heat energy that raises the temperature of the iron 25.0°C. If iron has a specific heat of  0.10 J/g°C, what is the mass of the iron sample?

• 25 g
• 30 g
• 20 g
• 50 g

Tags

NGSS.HS-PS3-4

What unit do you use to measure Thermal Energy?

• J/g ºC

• g

• ºC

• J