Energy Transformations

When a person strikes and lights a match, potential energy in the match is transformed into which types of energy?

• radiant and nuclear

• nuclear and kinetic

• thermal and radiant

• electrical and thermal

Tags

NGSS.HS-PS1-4

NGSS.HS-PS3-4

Which set of terms best defines what affects kinetic energy and potential energy, respectively?

• position, gravity

• velocity, height

• height, position

• gravity, velocity

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-2

What is the source of almost all energy on Earth?

• the Sun

• Earth's hot core

• moving water

• stored carbon

Tags

NGSS.MS-ESS2-4

If the kinetic and potential energy in a system are equal, then the potential energy increases. What happens as a result?

• Total energy decreases

• stored energy decreases

• energy of motion decreases

• total energy increases

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

A flashlight uses the chemical energy stored in a battery. This chemical energy is eventually converted into which two forms of energy?

• nuclear and electrical

• thermal and mechanical

• radiant and thermal

• mechanical and nuclear

As a person pushes a box across a floor, the energy from the person’s moving arm is transferred to the box, and the box and the floor become warm. During this process, what happens to energy?

• It is increased.

• It is conserved.

• It is decreased.

• It is created.

Tags

NGSS.MS-PS3-5

What are the two main types of energy?

• potential and chemical

• kinetic and potential

• radiant and chemical

• thermal and radiant

Tags

NGSS.MS-PS3-2

Which activity directly converts energy from the Sun into chemical energy?

• a snake lying on a sunny rock to keep warm

• a rabbit using energy from food it has eaten to run

• a bean plant making its own food to grow

• a person burning firewood to cook food

Tags

NGSS.MS-LS1-6

The amount of kinetic energy an object has depends on which feature of the object?

• its gravity

• its position

• its motion

• its height

Tags

NGSS.MS-PS3-1

Solar-powered cars use energy from the Sun to work. A panel on the car absorbs light energy from the Sun, which then generates an electric current. This electric current, in turn, allows the car to move. Which shows the correct order of energy transformations that take place in a solar-powered car?

• radiant, chemical, electrical

• electrical, kinetic, radiant

• electrical, chemical, kinetic

• radiant, electrical, mechanical