Energy in Science: Interactive Quizzes for Year 7 Students

Question 1

When you turn on a flashlight, what happens to the electrical energy?

Accepted Answer

It is transformed into light energy.

Answer

It is stored in the flashlight.

Answer

It creates heat energy.

Answer

It becomes sound energy.

Question 2

Which of the following is an example of energy conservation?

Accepted Answer

Turning off the lights when leaving a room

Answer

Plugging in multiple devices into a single power strip

Answer

Using a clothes dryer instead of hanging clothes to dry

Answer

Leaving the refrigerator door open for extended periods

Question 3

What tool is used to measure the amount of energy used by an electrical appliance?

Accepted Answer

Wattmeter

Answer

Voltmeter

Answer

Ammeter

Answer

Ohmmeter

Question 4

Which of the following is a renewable energy source?

Accepted Answer

Wind

Answer

Coal

Answer

Natural gas

Answer

Nuclear

Question 5

What is the law of conservation of energy?

Accepted Answer

Energy cannot be created or destroyed, only transferred or changed.

Answer

Energy increases as it is transferred from one form to another.

Answer

Energy decreases as it is transferred from one form to another.

Answer

Energy can be created or destroyed at will.

Question 6

Which of the following is an advantage of using energy-efficient appliances?

Accepted Answer

Lower energy bills

Answer

Increased CO2 emissions

Answer

Frequent repairs

Answer

Reduced lifespan of appliances

Question 7

What is the purpose of insulation in a building?

Accepted Answer

To keep the building warm in winter and cool in summer

Answer

To block out noise

Answer

To improve air quality

Answer

To generate electricity

Question 8

What happens to the energy of a bouncing ball that hits the floor? Is it instantly converted into heat, lost completely, conserved, or only lost if the ball breaks?

Accepted Answer

It is converted into heat and sound

Answer

It is completely lost and cannot be recovered

Answer

It is conserved and remains constant

Answer

It is only lost if the ball breaks

Question 9

Which of the following materials is a good conductor of electricity? Copper, plastic, wood, or rubber?

Accepted Answer

Copper

Answer

Plastic

Answer

Wood

Answer

Rubber

Question 10

What is the SI unit of energy? Joule, watt, kilowatt-hour, or electronvolt?

Accepted Answer

Joule

Answer

Watt

Answer

Kilowatt-hour

Answer

Electronvolt

Question 11

Which of the following is an energy-efficient lighting option? Traditional light bulb, LED light bulb, halogen light bulb, or fluorescent light bulb?

Accepted Answer

An LED light bulb

Answer

A traditional light bulb

Answer

A halogen light bulb

Answer

A fluorescent light bulb

Question 12

Which device converts electrical energy into mechanical energy?

Accepted Answer

Electric motor

Answer

Light bulb

Answer

Solar panel

Answer

Battery

Question 13

The Law of Conservation of Energy states that:

Accepted Answer

Energy cannot be created or destroyed.

Answer

Energy can be created, but not destroyed.

Answer

Energy can be destroyed, but not created.

Answer

Energy can be created and destroyed.

Question 14

Which of the following is considered a renewable energy source?

Accepted Answer

Solar power

Answer

Fossil fuels

Answer

Natural gas

Answer

Nuclear power

Question 15

Which of the following best describes conduction?

Accepted Answer

Heat transfer through a solid object

Answer

Heat transfer through a liquid

Answer

Heat transfer through a vacuum

Answer

Heat transfer through radiation

Question 16

What is the purpose of a transformer in an electrical circuit?

Accepted Answer

To change the voltage of an alternating current

Answer

To change the frequency of an alternating current

Answer

To convert alternating current to direct current

Answer

To convert direct current to alternating current

Question 17

Which of the following is **not** a renewable energy source?

Accepted Answer

Coal

Answer

Solar energy

Answer

Wind energy

Answer

Hydropower

Question 18

When a ball is thrown into the air, what happens to its energy?

Accepted Answer

It is converted into potential energy

Answer

It disappears

Answer

It is converted into kinetic energy

Answer

It remains constant

Question 19

What is the unit of energy in the International System of Units (SI)?

Accepted Answer

Joule

Answer

Newton

Answer

Watt

Answer

Ampere

Question 20

Which of the following is **not** a form of energy?

Accepted Answer

Force

Answer

Heat

Answer

Sound

Answer

Light

Question 21

How does a solar panel convert energy?

Accepted Answer

Light into electricity

Answer

Heat into electricity

Answer

Sound into electricity

Answer

Motion into electricity

Question 22

Which of the following is **not** an example of energy conservation?

Accepted Answer

Leaving electronics on standby

Answer

Turning off lights when leaving a room

Answer

Insulating a house

Answer

Using energy-efficient appliances

Question 23

What is the difference between potential and kinetic energy?

Accepted Answer

Potential energy is energy of position, while kinetic energy is energy of motion.

Answer

Kinetic energy is energy of position, while potential energy is energy of motion.

Answer

They are the same thing.

Answer

Neither of the above

Question 24

Which of the following factors does **not** affect the amount of potential energy an object has?

Accepted Answer

Velocity

Answer

Mass

Answer

Height

Answer

Gravity

Question 25

When energy is transferred between objects, what occurs?

Accepted Answer

Energy changes its form.

Answer

Energy is created.

Answer

Energy is destroyed.

Answer

Energy simply vanishes.

Question 26

Which device takes electrical energy and converts it into light energy?

Accepted Answer

Light bulb

Answer

Battery

Answer

Solar panel

Answer

Generator

Question 27

What is the unit of energy in the International System of Units (SI)?

Accepted Answer

Joule

Answer

Newton

Answer

Watt

Answer

Celsius

Question 28

Identify the renewable energy source from the following options:

Accepted Answer

Wind power

Answer

Fossil fuels

Answer

Nuclear energy

Answer

Coal

Question 29

Through which process do plants convert light energy into stored chemical energy?

Accepted Answer

Photosynthesis

Answer

Respiration

Answer

Combustion

Answer

Evaporation

Question 30

Which factor does NOT influence the energy possessed by an object?

Accepted Answer

Colour

Answer

Mass

Answer

Velocity

Answer

Temperature

Question 31

What is the fundamental principle known as the law of conservation of energy?

Accepted Answer

Energy can be transferred, but not created or destroyed.

Answer

Energy can be created and destroyed.

Answer

Energy is continuously increasing.

Answer

Energy is continuously decreasing.

Question 32

Which of the following is **not** a form of energy?

Accepted Answer

Speed of an object

Answer

Energy of motion (kinetic energy)

Answer

Energy of sound waves (sound energy)

Answer

Energy of heat (thermal energy)

Question 33

Which of the following is NOT a form of energy?

Accepted Answer

The amount of matter in an object

Answer

Energy of motion

Answer

Energy stored due to position or condition

Answer

Thermal energy

Question 34

Which of these energy sources is NOT a renewable resource?

Accepted Answer

Fossil fuels

Answer

Solar energy

Answer

Wind energy

Question 35

What is the key difference between renewable and non-renewable energy sources?

Accepted Answer

Renewable sources are infinite, while non-renewable sources are limited.

Answer

Non-renewable sources are infinite, while renewable sources are limited.

Answer

Both renewable and non-renewable sources are infinite.

Answer

Both renewable and non-renewable sources are limited.

Question 36

What is the Law of Conservation of Energy and how does it relate to our daily lives?

Accepted Answer

The total amount of energy in a closed system remains constant.

Answer

Energy can be created or destroyed.

Answer

Energy is always lost when it is transferred.

Answer

Turning off a light switch decreases the total energy in the room.

Question 37

Which of these energy sources is NOT a renewable source?

Accepted Answer

Fossil fuels

Answer

Solar energy

Answer

Wind energy

Question 38

Which of these actions would have the greatest positive impact on reducing the amount of energy your household uses?

Accepted Answer

Unplugging electronics when they are not in use

Answer

Using public transport instead of driving a car

Answer

Installing a solar panel system

Answer

Turning off lights when leaving a room

Question 39

How do solar cells convert sunlight into electricity?

Accepted Answer

Solar cells absorb sunlight and use the energy to create an electric current.

Answer

Solar cells store sunlight as chemical energy and release it as electricity when needed.

Answer

Solar cells convert sunlight into heat, which is then used to generate electricity.

Answer

Solar cells reflect sunlight back into the atmosphere, reducing the amount of sunlight available for photosynthesis.

Question 40

Which of the following energy sources is NOT renewable?

Accepted Answer

Fossil fuels

Answer

Wind energy

Answer

Solar energy

Answer

Hydropower

Question 41

What is the SI unit of energy?

Accepted Answer

Joule (J)

Answer

British thermal unit (BTU)

Answer

Electronvolt (eV)

Answer

Calorie (cal)

Question 42

Which form of energy is stored in the bonds of chemical compounds, such as fuels?

Accepted Answer

Chemical energy

Answer

Kinetic energy

Answer

Thermal energy

Answer

Electrical energy

Question 43

According to the Law of Conservation of Energy, what happens to the total amount of energy in an isolated system?

Accepted Answer

It remains constant

Answer

It decreases

Answer

It increases

Question 44

When you turn on a light bulb, which energy transformation occurs?

Accepted Answer

Electrical energy to light energy

Answer

Chemical energy to electrical energy

Answer

Thermal energy to sound energy

Answer

Kinetic energy to thermal energy

Question 45

What is the term for the transfer of heat through direct contact?

Accepted Answer

Conduction

Answer

Evaporation

Answer

Radiation

Answer

Convection

Question 46

Which of the following is NOT a recommended practice for conserving energy in the home?

Accepted Answer

Leaving lights on in unoccupied rooms

Answer

Using energy-efficient appliances

Answer

Insulating walls and ceilings

Answer

Unplugging electronics when not in use

Question 47

What is the main energy source used in most power plants to generate electricity?

Accepted Answer

Fossil fuels

Answer

Solar energy

Answer

Hydropower

Answer

Nuclear energy

Question 48

What is the primary purpose of a fuse in an electrical circuit?

Accepted Answer

To protect the circuit from damage caused by excessive current

Answer

To increase the current flow

Answer

To regulate the voltage

Answer

To store electrical energy

Question 49

Which of these is **not** a type of energy?

Accepted Answer

Gravity

Answer

Heat

Answer

Light

Question 50

When energy is changed from one form to another, what physical quantity stays the same?

Accepted Answer

Total energy

Answer

Potential energy

Answer

Kinetic energy

Question 51

Which device transforms electrical energy into light energy?

Accepted Answer

Light bulb

Answer

Battery

Answer

Wind turbine

Answer

Solar panel

Question 52

Identify the renewable energy source from the list:

Accepted Answer

Solar

Answer

Natural gas

Answer

Nuclear

Answer

Coal

Question 53

What is the SI unit for measuring energy?

Accepted Answer

Joule

Answer

Newton

Answer

Kelvin

Answer

Watt

Question 54

Which factors affect the amount of kinetic energy an object has?

Accepted Answer

Mass and velocity

Answer

Pressure and humidity

Answer

Temperature and density

Answer

Volume and surface area

Question 55

What is an advantage of using renewable energy?

Accepted Answer

Reduces the release of greenhouse gases

Answer

Increases energy expenses

Answer

Depletes natural resources

Answer

Increases air pollution

Question 56

Which action does **not** help to conserve electricity at home?

Accepted Answer

Leaving lights turned on

Answer

Installing solar panels

Answer

Unplugging appliances when not in use

Answer

Using energy-efficient appliances