Level 1: Conservation of Energy

Front

What type of energy is converted into mechanical energy when gasoline is burned in a car engine?

Back

Chemical energy.

Front

In energy transformations, what type of energy is always 'lost'?

Back

Thermal energy.

Tags

NGSS.MS-PS1-4

Front

What is the equation that represents the relationship between mechanical energy, kinetic energy, and potential energy?

Back

Mechanical energy = Kinetic energy + Potential energy.

Tags

NGSS.MS-PS3-4

Front

Which material does NOT help in reducing friction?

Back

Cotton.

Front

What causes some mechanical energy to leave the system as thermal energy when two surfaces interact?

Back

Friction.

Front

Define mechanical energy.

Back

Mechanical energy is the sum of kinetic and potential energy in a system.

Front

What is kinetic energy?

Back

Kinetic energy is the energy of an object due to its motion.

Tags

NGSS.MS-PS3-1

Front

What is potential energy?

Back

Potential energy is the stored energy of an object due to its position or state.

Tags

NGSS.MS-PS3-2

Front

How does friction affect energy transformation?

Back

Friction converts some mechanical energy into thermal energy, leading to energy loss.

Front

What is the principle of conservation of energy?

Back

The principle states that energy cannot be created or destroyed, only transformed from one form to another.

Tags

NGSS.MS-PS3-5