Quiz about Temperature & Energy Quiz

Question 1

What is the temperature of the top pan?

Accepted Answer

30

Answer

70

Answer

3

Answer

9

Question 2

The total energy of all the particles in a sample of matter is called:

Accepted Answer

thermal energy

Answer

temperature

Answer

kinetic energy

Answer

potential energy

Question 3

Energy between two objects transfers until their temperatures are equal and they reach a stable state.

Accepted Answer

True

Answer

False

Question 4

What is the total kinetic energy of the molecules in Diagram 1?

Accepted Answer

30

Answer

3

Answer

5

Answer

10

Question 5

Lava is hot liquid rock. When lava flows over solid ground, the solid ground beneath it increases in temperature. What happens to the molecules in the solid ground when the temperature is increasing?

Accepted Answer

The energy of the molecules in the ground increases.

Answer

More heat molecules combine with the molecules in the ground.

Answer

The cold energy of the molecules in the ground decreases.

Answer

The energy of the molecules in the ground decreases.

Question 6

How does heat travel?

Accepted Answer

hot to cold

Answer

cold to hot

Answer

cold to cold

Answer

hot to hot

Question 7

What is the definition of CONDUCTION?

Accepted Answer

When heat transfers from objects that are touching.

Answer

When heat is transferred from objects like rays of light or electromagnetic

Answer

a hot liquid or air that expands, becomes less dense, and rises or becomes more dense, and sinks.

Answer

When heat transfers through the heater or AC in your house.

Question 8

Baby chickens are kept warm from heat lamps demonstrating this type of heat transfer.

Accepted Answer

radiation

Answer

conduction

Answer

convection

Question 9

Walking on the warm sand sand with your bare feet demonstrates this type of heat transfer.

Accepted Answer

conduction

Answer

convection

Answer

radiation

Question 10

Near the ceiling of a room the air is warmer. The warm air rises because of

Accepted Answer

convection

Answer

conduction

Answer

radiation

Question 11

The handle of a metal spoon warms up when it is placed in a hot bowl of soup because the metal spoon is a good

Accepted Answer

conductor

Answer

insulator

Answer

convector

Answer

radiator

Question 12

What is the definition of "kinetic energy"?

Accepted Answer

the energy that an object has because it is moving

Answer

the ability to make things move or change

Answer

to move from one object to another or one place to another

Question 13

What is the definition of "equilibrium"?

Accepted Answer

a balanced state in which a system is stable, such as when two samples are at the same temperature

Answer

when two things exchange molecules

Answer

when two things are balanced and weigh the same

Answer

when two things exchange energy

Question 14

Molecules in a hotter sample will....

Accepted Answer

be moving faster

Answer

have less kinetic energy

Answer

be moving slower

Answer

stop moving

Question 15

Geothermal power plants send water through pipes deep underground where it is hot. This causes the temperature of the water to increase.

What happens to the molecules of the water when the temperature of the water increases?

Accepted Answer

The kinetic energy of the water molecules increases.

Answer

The kinetic energy of the water molecules decreases.

Answer

The cold energy of the water molecules decreases.

Answer

More heat molecules combine with the water molecules.

Question 16

Maja puts a hockey puck onto ice. After a while the temperature of the hockey puck decreases. What happens to the molecules of the hockey puck when the temperature of the puck decreases?

Accepted Answer

The kinetic energy of the molecules in the hockey puck decreases.

Answer

The hockey puck loses heat molecules.

Answer

The energy of the molecules in the hockey puck increases.

Answer

The cold energy of the molecules in the hockey puck increases.

Question 17

A chocolate maker is going to stack two bars of chocolate. The bars of chocolate are the same size and have the same number of molecules. The diagram above shows the chocolate bars now, before they touch each other. How does the temperature of the top chocolate bar compare with the temperature of the bottom chocolate bar now, and what will happen after the bars have been touching for a while?

Accepted Answer

Before the bars touch, the top bar is hotter than the bottom bar. Once the bars are touching, the top bar will transfer kinetic energy to the molecules in the cooler bottom bar until both bars reach the same temperature, which will be in between their starting temperatures.

Answer

Before the bars touch, the two bars are different temperatures. Once the bars are touching, both kinetic energy and cold energy will transfer between the molecules in the two bars until both bars reach the same temperature, which will be in between their starting temperatures.

Answer

Before the bars touch, the top bar is cooler than the bottom bar. Once the bars are touching, the bottom bar will transfer kinetic energy to the molecules in the cooler top bar until both bars reach the same temperature, which will be in between their starting temperatures.

Answer

Before the bars touch, the top bar is hotter than the bottom bar. Once the bars are touching, the cooler bottom bar will gain kinetic energy until the molecules of both bars have an energy of 25, because hotter things increase the temperature of cooler things.

Question 18

What is the average speed of the molecules (temperature) in Diagram 1?

Accepted Answer

3

Answer

30

Answer

10

Answer

5

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