HMH Grade 4 Unit 2: Energy

Front

What is energy?

Back

Energy is the ability to do work or cause change. It exists in various forms, such as kinetic, potential, thermal, and electrical.

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Front

What is kinetic energy?

Back

Kinetic energy is the energy of an object in motion. The faster an object moves, the more kinetic energy it has.

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NGSS.MS-PS3-1

NGSS.MS-PS3-5

Front

What is potential energy?

Back

Potential energy is stored energy based on an object's position or condition. For example, a ball at the top of a hill has potential energy.

Tags

NGSS.MS-PS3-2

Front

What is an energy transformation?

Back

An energy transformation is the process of changing energy from one form to another, such as converting electrical energy to light energy in a lamp.

Tags

NGSS.MS-PS3-5

Front

What is a circuit?

Back

A circuit is a closed path through which electric current can flow. It must be complete for electricity to travel.

Front

What is a complete circuit?

Back

A complete circuit has no breaks, allowing electricity to flow uninterrupted from the power source to the device and back.

Front

What is a Rube Goldberg machine?

Back

A Rube Goldberg machine is a complex device that performs a simple task in an indirect and overly complicated way, often using a series of chain reactions.

Tags

NGSS.MS-ETS1-4

NGSS.MS-PS2-1

Front

What is solar energy?

Back

Solar energy is energy from the sun that can be converted into other forms of energy, such as electrical energy.

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NGSS.MS-LS1-6

Front

What is electrical energy?

Back

Electrical energy is the energy of moving electrons, which can be used to power devices and appliances.

Front

What is the role of a conductor in a circuit?

Back

A conductor is a material that allows electricity to flow through it easily, such as copper wire.