Energy

Front

What is energy?

Back

The ability to do work.

Answer explanation

Energy is defined as the ability to do work. This encompasses all forms of energy, including moving and stored energy, but the most fundamental definition is its capacity to perform work.

Front

Potential energy

Back

stored energy

Answer explanation

Potential energy is defined as stored energy, which can be converted into other forms of energy when needed. It contrasts with moving energy, which refers to kinetic energy.

Tags

NGSS.MS-PS3-2

Front

What is kinetic energy?

Back

moving energy

Answer explanation

Kinetic energy refers to the energy of an object in motion, hence it is often described as 'moving energy'. This distinguishes it from potential energy, which is stored energy, and other forms like renewable energy.

Tags

NGSS.MS-PS3-1

Front

What is given off from energy?

Back

heat

Answer explanation

Energy primarily gives off heat as a byproduct during various processes, such as combustion or metabolism. While water, smoke, and ash can also be produced, heat is the main form of energy release.

Front

At what point does the biker have the greatest Kinetic Energy?

Back

Point D

Answer explanation

The biker has the greatest Kinetic Energy at Point D because Kinetic Energy is highest when speed is maximized. At Point D, the biker is likely at the lowest elevation, gaining maximum speed due to gravity.

Tags

NGSS.MS-PS3-1

Front

At what point does the biker have the greatest Potential Energy?

Back

Point B

Answer explanation

The biker has the greatest Potential Energy at Point B because it is the highest point in the scenario. Potential Energy increases with height, making Point B the correct choice.

Tags

NGSS.MS-PS3-2

Front

At what point does Potential Energy transform into Kinetic Energy?

Back

Point C

Answer explanation

Potential Energy transforms into Kinetic Energy at Point C, where the object reaches its lowest point, converting stored energy into motion as it descends.

Tags

NGSS.MS-PS3-2

Front

Which Apple has the greatest Gravitational Potential Energy?
Options: Apple A, Apple B, Apple C, Apple D

Back

Apple B

Answer explanation

Gravitational Potential Energy depends on height and mass. Apple B has the highest position among the options, resulting in the greatest Gravitational Potential Energy compared to Apples A, C, and D.

Tags

NGSS.MS-PS3-2

NGSS.MS-PS2-4

Front

According to the Law of Conservation of Energy, energy cannot be _________ or ____________.

Back

created, destroyed

Answer explanation

The Law of Conservation of Energy states that energy cannot be created or destroyed, meaning it can only change forms. Therefore, the correct answer is 'created, destroyed'.

Front

Can you create energy?

Back

No

Answer explanation

No, energy cannot be created; it can only be transformed from one form to another, as stated by the law of conservation of energy. Therefore, the correct answer is 'No'.

Tags

NGSS.MS-PS3-5