Heat, Sound & Light

Heat, Sound & Light

9th Grade

17 Qs

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Heat, Sound & Light

Heat, Sound & Light

Assessment

Quiz

Science

9th Grade

Practice Problem

Hard

Created by

Inas Kady

Used 3+ times

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17 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is the best conductor of heat?

Wood

Plastic

Copper

Glass

Answer explanation

Metals like copper are excellent conductors because their atoms are arranged in a way that allows free movement of electrons, facilitating heat transfer.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the process by which heat is transferred through a fluid (liquid or gas)?

Conduction

Convection

Radiation

Insulation

Answer explanation

In convection, heat is transferred through the movement of fluid particles. Warmer parts of the fluid rise, and cooler parts sink.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

What happens to the particles in a substance as it is heated?

They move more slowly

They move more quickly

They stay the same

They freeze in place

Answer explanation

Heating a substance increases the kinetic energy of its particles, making them move faster.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is an example of heat transfer through radiation?

Boiling water in a pot

The warmth of the sun on your skin

Heat moving through a metal rod

Hot air rising from a heater

Answer explanation

Radiation is the transfer of heat through electromagnetic waves, like the heat we feel from the sun.

5.

OPEN ENDED QUESTION

3 mins • 1 pt

Media Image

Why do metals conduct heat better than non-metals?

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6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What type of wave is sound?

Perpendicular Waves

Longitudinal wave

Electromagnetic wave

Surface wave

Answer explanation

Sound is a longitudinal wave, meaning the particles of the medium move parallel to the direction of the wave.

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following materials will sound travel through the fastest?

Air

Water

Steel

Vacuum

Answer explanation

Sound travels fastest in solids like steel because particles are more closely packed together, allowing the wave to transmit energy more quickly.

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