Energy: Definition, Forms, and Transformations | Science Quiz

Question 1

Which of the following is NOT a recognized form of energy?

Accepted Answer

Emotional energy

Answer

Kinetic energy

Answer

Potential energy

Answer

Thermal energy

Question 2

As a ball is thrown vertically upward, at the highest point of its trajectory, which type of energy does it possess the most?

Accepted Answer

Potential energy

Answer

Kinetic energy

Answer

Thermal energy

Answer

No energy

Question 3

When a light bulb is turned on, which of the following energy transformations is occurring?

Accepted Answer

Electrical to light and heat

Answer

Chemical to light and heat

Answer

Mechanical to light and heat

Answer

Thermal to light and heat

Question 4

Which of the following scenarios best describes the kinetic energy of a car traveling at a constant speed?

Accepted Answer

Constant

Answer

Constantly increasing

Answer

Constantly decreasing

Answer

Zero

Question 5

As a hot cup of coffee is placed on a table, which of the following best describes the transfer of thermal energy between the coffee and the table?

Accepted Answer

Conduction

Answer

Convection

Answer

Radiation

Answer

Evaporation

Question 6

Which of the following energy sources is considered renewable?

Accepted Answer

Solar energy

Answer

Fossil fuels

Answer

Nuclear power

Answer

Coal

Question 7

In a hydroelectric dam, which energy transformation is taking place?

Accepted Answer

Mechanical to electrical

Answer

Chemical to thermal

Answer

Thermal to electrical

Answer

Electrical to mechanical

Question 8

The law of conservation of energy states that:

Accepted Answer

The total amount of energy in the universe remains constant

Answer

Energy can be created or destroyed

Answer

Energy can only be converted from one form to another

Answer

Energy is never lost, only recycled

Question 9

Which of the following options describes kinetic energy?

Accepted Answer

The energy an object possesses due to its motion

Answer

The energy stored in an object at rest due to its position or condition

Answer

The energy an object has due to its temperature

Answer

The energy an object has due to its electrical charge

Question 10

When a ball is thrown upwards, what happens to its potential energy?

Accepted Answer

It increases.

Answer

It decreases.

Answer

It remains the same.

Answer

It converts into kinetic energy.

Question 11

Which of the following factors does NOT affect thermal energy?

Accepted Answer

Color

Answer

Temperature

Answer

Mass

Answer

Volume

Question 12

What is the formula for calculating kinetic energy?

Accepted Answer

E = 1/2mv²

Answer

E = mc²

Answer

E = Fd

Answer

E = V²/R

Question 13

Which device converts electrical energy into mechanical energy?

Accepted Answer

Electric motor

Answer

Light bulb

Answer

Solar panel

Answer

Battery

Question 14

What is the main difference between heat and temperature?

Accepted Answer

Heat is a form of energy, while temperature measures the intensity of heat.

Answer

Temperature is a form of energy, while heat measures the intensity of temperature.

Answer

Heat and temperature are the same thing.

Answer

Heat is a type of matter, while temperature is a type of energy.

Question 15

Which of the following materials is a good conductor of thermal energy?

Accepted Answer

Copper

Answer

Styrofoam

Answer

Glass

Answer

Air

Question 16

What is the primary function of a solar cell?

Accepted Answer

To convert light energy into electrical energy

Answer

To convert electrical energy into light energy

Answer

To convert thermal energy into light energy

Answer

To convert potential energy into kinetic energy

Question 17

Which of the following is an example of kinetic energy in motion?

Accepted Answer

A rolling ball

Answer

A stationary ball

Answer

A burning candle

Answer

A stretched spring

Question 18

Which of the following is a type of potential energy?

Accepted Answer

Energy stored in a stretched rubber band

Answer

Energy possessed by a flowing river

Answer

Energy released by a burning piece of wood

Answer

Energy generated by a spinning top

Question 19

What is the result of thermal energy transfer from a warmer object to a cooler object?

Accepted Answer

The warmer object becomes cooler, while the cooler object becomes hotter.

Answer

Both objects become hotter.

Answer

Both objects become colder.

Answer

No change in temperature occurs.

Question 20

Which unit is used to measure energy?

Accepted Answer

Joule

Answer

Newton

Answer

Celsius

Answer

Kilogram

Question 21

What is the formula for calculating kinetic energy?

Accepted Answer

KE = 1/2 mv^2

Answer

KE = mv

Answer

KE = 1/2 mgh

Answer

KE = mgh

Question 22

Which of the following is considered a renewable energy source?

Accepted Answer

Wind

Answer

Coal

Answer

Natural gas

Answer

Nuclear

Question 23

What is the ultimate source of energy for most living organisms on Earth?

Accepted Answer

The sun

Answer

The moon

Answer

The wind

Answer

The ocean

Question 24

As a ball is thrown upwards, its kinetic energy:

Accepted Answer

First increases then decreases

Answer

Decreases

Answer

Increases

Answer

Remains constant

Question 25

Which of the following is a source of renewable energy?

Accepted Answer

Hydropower

Answer

Fossil fuels

Answer

Nuclear power

Answer

Natural gas

Question 26

The standard unit of energy in the International System of Units (SI) is:

Accepted Answer

Joule

Answer

Watt

Answer

Newton

Answer

Kilogram

Question 27

A car traveling at a constant speed possesses:

Accepted Answer

Only kinetic energy

Answer

Only potential energy

Answer

Both kinetic and potential energy

Answer

No energy

Question 28

Which process involves a reduction in thermal energy?

Accepted Answer

Freezing water

Answer

Melting ice

Answer

Boiling water

Answer

Cooking food

Question 29

A bouncing ball exemplifies:

Accepted Answer

Energy transformation

Answer

Energy conservation

Answer

Energy creation

Answer

Energy destruction

Question 30

The energy efficiency of a device is defined as:

Accepted Answer

The ratio of output energy to input energy

Answer

The ratio of input energy to output energy

Answer

The total amount of energy used by the device

Answer

The difference between input and output energy

Question 31

Identify the form of kinetic energy exemplified by a rolling ball.

Accepted Answer

Rolling ball

Answer

Stretched rubber band

Answer

Book resting on a shelf

Answer

Flowing river

Question 32

Which of the following does NOT influence an object's thermal energy?

Accepted Answer

Speed

Answer

Temperature

Answer

Mass

Answer

Volume

Question 33

Compare the kinetic energy of two cars, one traveling at high speed and the other at low speed. Which car has more kinetic energy?

Accepted Answer

High-speed car

Answer

Low-speed car

Answer

Both cars have the same kinetic energy

Answer

Cannot be determined from the given information

Question 34

In the International System of Units (SI), what is the unit of measurement for energy?

Accepted Answer

Joule

Answer

Watt

Answer

Hertz

Answer

Kelvin

Question 35

What is a disadvantage associated with the use of fossil fuels?

Accepted Answer

Air pollution

Answer

High efficiency

Answer

Low cost

Answer

Renewable resource

Question 36

How does efficiency contribute to energy conservation?

Accepted Answer

Higher efficiency leads to greater energy conservation.

Answer

Lower efficiency leads to less energy conservation.

Answer

Efficiency has no effect on energy conservation.

Question 37

Which of the following best describes the relationship between the power of a machine and the rate at which it transfers energy?

Accepted Answer

Power is proportional to the rate of energy transfer.

Answer

Power is inversely proportional to the rate of energy transfer.

Answer

Power is independent of the rate of energy transfer.

Question 38

How does conduction transfer thermal energy?

Accepted Answer

Particles in matter collide

Answer

A fluid moves

Answer

Electromagnetic waves are emitted

Question 39

A ball is thrown vertically upwards. At the highest point of its trajectory, what is the state of its kinetic energy and potential energy?

Accepted Answer

Kinetic energy is zero and potential energy is maximum

Answer

Both kinetic energy and potential energy are zero

Answer

Kinetic energy is maximum and potential energy is zero

Answer

Both kinetic energy and potential energy are maximum

Question 40

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

Accepted Answer

Matter

Answer

Kinetic energy

Answer

Potential energy

Answer

Thermal energy

Question 41

As a ball is thrown into the air, which form of energy does it possess at its highest point?

Accepted Answer

Potential energy

Answer

Kinetic energy

Answer

Thermal energy

Answer

Chemical energy

Question 42

Identify the example that represents the conversion of kinetic energy to potential energy:

Accepted Answer

A roller coaster ascending a hill

Answer

A car traveling on a flat road

Answer

A ball rolling down a slope

Question 43

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

Accepted Answer

Joule

Answer

Watt

Answer

Calorie

Answer

Newton

Question 44

Which of the following is classified as a renewable energy source?

Accepted Answer

Solar energy

Answer

Fossil fuels

Answer

Nuclear energy

Answer

Natural gas

Question 45

State the Law of Conservation of Energy:

Accepted Answer

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

Answer

Energy can be created from nothing.

Answer

Energy is always lost in any transformation.

Question 46

Explain the difference between heat and temperature:

Accepted Answer

Heat is the transfer of thermal energy, while temperature measures the average kinetic energy of molecules.

Answer

Heat and temperature are identical concepts.

Question 47

Define the Second Law of Thermodynamics:

Accepted Answer

The total entropy of an isolated system consistently increases over time.

Answer

The total energy of an isolated system consistently decreases over time.

Answer

The total entropy of an isolated system consistently decreases over time.

Question 48

When a ball is tossed vertically upward, which form of energy does it possess the most at its highest point?

Accepted Answer

Potential energy

Answer

Thermal energy

Answer

Elastic energy

Answer

Kinetic energy

Question 49

In a light bulb connected to a battery, which form of energy is converted from electrical energy?

Accepted Answer

Light energy

Answer

Sound energy

Answer

Potential energy

Answer

Kinetic energy

Question 50

As a pendulum swings to its lowest point, which form of energy does it have the most?

Accepted Answer

Kinetic energy

Answer

Nuclear energy

Answer

Elastic energy

Answer

Thermal energy

Question 51

When a block is pushed up an inclined plane at a constant velocity, which force is doing positive work on the block?

Accepted Answer

Applied force

Answer

Force of gravity

Answer

Force of friction

Answer

Normal force

Question 52

In a battery connected to a circuit, which form of energy is converted from chemical energy?

Accepted Answer

Electrical energy

Answer

Kinetic energy

Answer

Potential energy

Answer

Sound energy

Question 53

When a car applies brakes to come to a stop, which form of energy is converted from kinetic energy?

Accepted Answer

Thermal energy

Answer

Chemical energy

Answer

Potential energy

Question 54

A refrigerator in operation removes which form of energy from the inside?

Accepted Answer

Thermal energy

Answer

Potential energy

Answer

Kinetic energy

Answer

Sound energy

Question 55

When a cyclist pedals up a hill at a constant speed, which force is doing negative work on the person?

Accepted Answer

Force of gravity

Answer

Force of air resistance

Answer

Force of friction

Answer

Force applied to the pedals