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Heat Transfer

Authored by Christina Maples

Other Sciences

4th - 5th Grade

Used 2K+ times

Heat Transfer
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20 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What  is the original source of most of the energy that people use?

By radiation from the Sun.
By convection from the Sun.
By radiation from the Earth's core.
Conduction from Earth's core.

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which best explains how roasting marshmallows happens?

Heat from the fire is conducted into the marshmallow.
Heat from the fire is radiated into the marshmallow.
The coolness of the marshmallow is conducted into the fire.
The coolness of the marshmallow is radiated into the fire.

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which best describes heat transfer by radiation?

A slice of bacon frying in a pan.
A pot on a stove boiling water.
Cooking a hotdog in a microwave.
A hot air balloon.

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

When choosing materials to build a fireplace, why is brick a better choice than metal?

Brick is a conductor.
Brick is heat resistant.
Metal is a conductor.
Metal is heat resistant.

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What enables firemen to enter buildings that are on fire and return from them safely?

Convection cells keep fire away
The heat makes the building expand so there is no more room
Firemen wear heat resistant suits
They are really fast

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Why should space be left at the top of a plastic bottle when filling with water and then freezing?

Because water expands when frozen.
Because water contracts when frozen.
Because plastic contracts when frozen.
Because plastic expands when frozen.

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which best explains why there are gaps between the concrete sidewalks?

When it's cold the gaps allow expanding without cracking.
When it's hot the gaps allow expanding without cracking.
When it's cold the gaps allow contracting without cracking.
When it's hot the gaps allow contracting without cracking.

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