Thermal Energy

Last updated over 1 year ago

23 questions

Required

2

Required

2

Required

1

Required

1

Required

1

Required

2

Required

1

Required

1

Required

1

Required

1

Required

4

Required

1

Required

1

Required

1

Required

1

Required

1

Required

1

Required

1

Required

1

Required

1

Required

1

Required

1

Required

1

Library

Thermal Energy

Last updated over 1 year ago

23 questions

Required

2

Required

2

Required

1

Required

1

Required

1

Required

2

Draggable item		Corresponding Item

Required

1

The molecules a sample has, the more __________________ it has.

Required

1

Required

1

Required

1

Equilibrium is based on the _______ 

Required

4

Required

1

What would be the equilibrium point of the two objects below?

Object A: 700 molecules each with 52 kJ of energy
Object B: 1500 molecules each with 30 kJ of energy

Required

1

Required

1

Required

1

Required

1

Required

1

Required

1

Required

1

Required

1

Required

1

Required

1

Required

1

What is true about samples that are cold? (Select all that apply)

Molecules are moving fast

Molecules are moving slow

They have more kinetic energy 

They have less kinetic energy

What is true about samples that are warm? (Select all that apply)

Molecules are moving fast

Molecules are moving slow

They have more kinetic energy 

They have less kinetic energy

Claire has been sledding outside in the cold weather and her fingers are cold. She comes inside and puts her hands around a hot mug of tea. The energy of the molecules in her fingers increases. What must be true about the energy in the molecules in the mug?

The energy of the molecules in the mug increases

The cold energy of the molecules in the mug decreases

The warm energy of the molecules in the mug increases

The energy of the molecules in the mug decreases

What is the total thermal energy of the sample?

8

80

10

18

What is the average temperature of the sample?

8

80

10

18

Match the following

Draggable item		Corresponding Item
Temperature		Total
Thermal Energy		Average

The molecules a sample has, the more __________________ it has.

Which pan has a higher temperature?

Top

Bottom

Which pan has a higher total energy?

Top

Bottom

Equilibrium is based on the _______ 

What are the steps of energy transfer? Put step one at the top!

The molecules collide
Energy transfers from the hot sample to the cold sample
The two samples reach equilibrium
Energy stops being transferred

What would be the equilibrium point of the two objects below?

Object A: 700 molecules each with 52 kJ of energy
Object B: 1500 molecules each with 30 kJ of energy

Thermal energy and temperature are a measure of the same thing.

True

False

Which way does heat transfer between hot and cold objects?

From cold to hot

Only through contact

From hot to cold

Both directions equally

What happens when ice is placed in warm water?

Water cools down instantly.

Cold travels to warm water.

Heat transfers from water to ice.

Ice absorbs heat from air.

When a hot metal rod touches ice, energy transfers to...

the table beneath the rod.

the metal, cooling it down.

the air around them.

the ice, melting it into water.

What happens when you place a warm drink in a fridge?

the fridge absorbs heat from the air.

energy moves from the drink to the fridge.

the drink stays warm inside.

energy is lost to the table.

When you touch a warm stove, heat transfers how?

from your hand to the stove.

directly from the stove to your hand.

from the air to your hand.

through the floor to your feet.

At what temperatures do these gases have similar speeds?

Oxygen at 22°C

Nitrogen at 22°C

Carbon Dioxide at 100°C

Helium at 0°C

Identify materials likely to have equal molecular speeds.

Water at 100°C

Argon at 0°C

Ammonia at 10°C

Carbon Dioxide at 10°C

What occurs during an exothermic reaction?

Heat is absorbed

Heat is released

Temperature increases around the substance

Temperature decreases

What is true about endothermic reactions?

Heat is absorbed

Heat is released

Light is emitted

Temperature decreases around the substance

At what temperature do molecules have the highest kinetic energy?

0°C

100°C

500°C

200°C

What is true about samples that are cold? (Select all that apply)

Molecules are moving fast

Molecules are moving slow

They have more kinetic energy 

They have less kinetic energy

What is true about samples that are warm? (Select all that apply)

Molecules are moving fast

Molecules are moving slow

They have more kinetic energy 

They have less kinetic energy

Claire has been sledding outside in the cold weather and her fingers are cold. She comes inside and puts her hands around a hot mug of tea. The energy of the molecules in her fingers increases. What must be true about the energy in the molecules in the mug?

The energy of the molecules in the mug increases

The cold energy of the molecules in the mug decreases

The warm energy of the molecules in the mug increases

The energy of the molecules in the mug decreases

What is the total thermal energy of the sample?

8

80

10

18

What is the average temperature of the sample?

8

80

10

18

Match the following 

Temperature

Total

Thermal Energy

Average

Which pan has a higher temperature?

Top

Bottom

Which pan has a higher total energy?

Top

Bottom

What are the steps of energy transfer? Put step one at the top!

The molecules collide

Energy transfers from the hot sample to the cold sample

The two samples reach equilibrium

Energy stops being transferred

Thermal energy and temperature are a measure of the same thing.

True

False

Which way does heat transfer between hot and cold objects?

From cold to hot

Only through contact

From hot to cold

Both directions equally

What happens when ice is placed in warm water?

Water cools down instantly.

Cold travels to warm water.

Heat transfers from water to ice.

Ice absorbs heat from air.

When a hot metal rod touches ice, energy transfers to...

the table beneath the rod.

the metal, cooling it down.

the air around them.

the ice, melting it into water.

What happens when you place a warm drink in a fridge?

the fridge absorbs heat from the air.

energy moves from the drink to the fridge.

the drink stays warm inside.

energy is lost to the table.

When you touch a warm stove, heat transfers how?

from your hand to the stove.

directly from the stove to your hand.

from the air to your hand.

through the floor to your feet.

At what temperatures do these gases have similar speeds?

Oxygen at 22°C

Nitrogen at 22°C

Carbon Dioxide at 100°C

Helium at 0°C

Identify materials likely to have equal molecular speeds.

Water at 100°C

Argon at 0°C

Ammonia at 10°C

Carbon Dioxide at 10°C

What occurs during an exothermic reaction?

Heat is absorbed

Heat is released

Temperature increases around the substance

Temperature decreases

What is true about endothermic reactions?

Heat is absorbed

Heat is released

Light is emitted

Temperature decreases around the substance

At what temperature do molecules have the highest kinetic energy?

0°C

100°C

500°C

200°C

Thermal Energy

Thermal Energy

The molecules a sample has, the more __________________ it has.

What would be the equilibrium point of the two objects below? Object A: 700 molecules each with 52 kJ of energyObject B: 1500 molecules each with 30 kJ of energy

What is true about samples that are cold? (Select all that apply)

What is true about samples that are warm? (Select all that apply)

Claire has been sledding outside in the cold weather and her fingers are cold. She comes inside and puts her hands around a hot mug of tea. The energy of the molecules in her fingers increases. What must be true about the energy in the molecules in the mug?

What is the total thermal energy of the sample?

What is the average temperature of the sample?

Match the following

The molecules a sample has, the more __________________ it has.

Which pan has a higher temperature?

Which pan has a higher total energy?

What are the steps of energy transfer? Put step one at the top!

What would be the equilibrium point of the two objects below? Object A: 700 molecules each with 52 kJ of energyObject B: 1500 molecules each with 30 kJ of energy

Thermal energy and temperature are a measure of the same thing.

Which way does heat transfer between hot and cold objects?

What happens when ice is placed in warm water?

When a hot metal rod touches ice, energy transfers to...

What happens when you place a warm drink in a fridge?

When you touch a warm stove, heat transfers how?

At what temperatures do these gases have similar speeds?

Identify materials likely to have equal molecular speeds.

What occurs during an exothermic reaction?

What is true about endothermic reactions?

At what temperature do molecules have the highest kinetic energy?

What would be the equilibrium point of the two objects below?

Object A: 700 molecules each with 52 kJ of energy
Object B: 1500 molecules each with 30 kJ of energy

What would be the equilibrium point of the two objects below?

Object A: 700 molecules each with 52 kJ of energy
Object B: 1500 molecules each with 30 kJ of energy