# Heat, Light And Sound Test

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| By MarlaMyDay
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MarlaMyDay
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Questions: 7 | Attempts: 4,553

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• 1.

### Energy is the ability to do:

• A.

Work

• B.

Play

• C.

Study

• D.

Teach

A. Work
Explanation
Energy is the ability to do work. Work refers to the application of force to move an object over a distance. Energy enables us to exert force and accomplish tasks. Play, study, and teach are activities that require energy, but they are not the definition of energy itself.

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• 2.

### The two main types of energy are:

• A.

Heat and light

• B.

Kinetic and Potential

• C.

• D.

Kinetic and Heat

B. Kinetic and Potential
Explanation
The correct answer is Kinetic and Potential. Kinetic energy refers to the energy possessed by an object due to its motion, while potential energy refers to the energy possessed by an object due to its position or condition. These two types of energy are fundamental and can be found in various systems and phenomena. Heat and light, radiation and sound are also types of energy, but they are not the main types mentioned in the question.

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• 3.

### What is energy measured with?

• A.

Joules

• B.

Litres

• C.

Kilograms

• D.

Decibels

A. Joules
Explanation
Energy is a physical quantity that is measured in joules. Joules is the standard unit of measurement for energy in the International System of Units (SI). It represents the amount of work done or the amount of heat transferred. Litres, kilograms, and decibels are not units of measurement for energy, but rather for volume, mass, and sound intensity respectively.

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• 4.

### What is the source of energy?

• A.

The Sun

• B.

Earth

• C.

The Moon

• D.

The stars

A. The Sun
Explanation
The Sun is the correct answer because it is the primary source of energy for the Earth. It emits light and heat through nuclear fusion, which provides energy for all living organisms on Earth. The Sun's energy is essential for photosynthesis in plants, which produces oxygen and food for other organisms. Additionally, solar energy is harnessed through solar panels to generate electricity for various purposes. Therefore, the Sun is the ultimate source of energy for life on Earth.

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• 5.

### Heat energy can:

• A.

Conduct electricity

• B.

Set something on fire

• C.

Increase the temperature of a substance

• D.

Freeze things

C. Increase the temperature of a substance
Explanation
Heat energy is the energy transferred between substances or objects due to a difference in temperature. When heat energy is added to a substance, it increases the kinetic energy of its molecules, causing them to move faster and collide more frequently. This increase in molecular motion leads to an increase in the substance's temperature. Therefore, the correct answer is that heat energy can increase the temperature of a substance.

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• 6.

### What happens when an object is hot?

• A.

The particles disappear

• B.

The particles vibrate

• C.

The particles stay in one spot

• D.

The particles vibrate more rapidly

D. The particles vibrate more rapidly
Explanation
When an object is hot, the particles within the object gain energy and start moving faster. This increased energy causes the particles to vibrate more rapidly. As a result, the object's temperature rises, and it may emit heat or radiation. The increased vibration of particles is what causes the object to feel hot to the touch.

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• 7.

### What are three ways that heat can move?

• A.

• B.

• C.

• D.

Convection, Light and Sound

Explanation
Heat can move through three different processes: radiation, conduction, and convection. Radiation is the transfer of heat through electromagnetic waves, such as the heat we receive from the sun. Conduction is the transfer of heat through direct contact between objects, like when you touch a hot stove. Convection is the transfer of heat through the movement of fluids, such as when warm air rises and cool air sinks.

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• Current Version
• Jun 11, 2024
Quiz Edited by
ProProfs Editorial Team
• Aug 13, 2012
Quiz Created by
MarlaMyDay

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