Free Printable Topic 12 SP015

Worksheets

Topic 12 SP015

Total questions: 15

Worksheet time: 9mins

Name

Class

Date

What is the definition of CONDUCTION?

When heat is transferred from objects like rays of light or electromagnetically.

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

When heat transfers from objects that are touching.

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

Land heats up and cools down faster than water.

True

False

dark colored surfaces _________ radiation

reflect

absorb

What type of heat transfer takes place when you touch a warm mug of hot chocolate?

Radiation

Convection

Conduction

None of the above

Conduction requires

Electricity

the electromagnetic spectrum and particles

air or water flow

direct contact

Heat transfer always moves ...

cold to hot

east to west

hot to cold

north to south

The following diagram shows water in contact with an ice cube and warmer air.

Which way will energy flow?

From the air to the water

From the water to the air

From the ice cube to the air

From the ice cube to the water

Energy is transferred as heat between two objects of ___________ temperatures.

differing

same

The liquid in a thermometer ______________ as the temperature increases.

expands

disappears

freezes

explodes

10.

Many objects, such as train tracks and road joints, are specifically designed to allow extra space for ...

thermal energy

specific heat

thermal expansion

conductors

11.

What happens to air particles when they are heated?

Particles move faster and expand

Particles move faster and become closer together.

Particles move slower and the air expands

Particles move faster become further apart

12.

Assuming that the thermal energy supplied to each of them is same, which of following states of matter would expand the least?

Solid

Liquid

Gas

13.

3. If the atoms of an object are moving or vibrating fast, the temperature would be...

Hot

Cold

Unknown

14.

What is Thermal expansion?

The transfer of thermal energy between materials by the collisions of particles

Is a decrease in a materials volume when temperature decreases

An increase in a materials volume when temperature increases

Chicken fried rice

15.

Select the correct formula to calculate linear change in length...

ΔL = LαΔT

ΔT = ΔL/Lα

σ = F/A

ε = ΔL/L

Reset

Topic 12 SP015

Total questions: 15

Worksheet time: 9mins

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