Science Review

Front

What is friction?

Back

Friction is a force that opposes the motion of an object when it comes into contact with another surface.

Front

How can friction be reduced?

Back

Friction can be reduced by using smoother surfaces, lubricants, or by using wheels.

Front

What is the purpose of using a cardboard surface to slide a truck?

Back

Using a cardboard surface can reduce friction, making it easier to slide the truck.

Front

What is a force?

Back

A force is a push or pull that can cause an object to move, stop, or change direction.

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-5

Front

What is gravity?

Back

Gravity is the force that pulls objects toward each other, such as the Earth pulling us down.

Tags

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Front

What is the difference between mass and weight?

Back

Mass is the amount of matter in an object, while weight is the force of gravity acting on that mass.

Front

What is energy?

Back

Energy is the ability to do work or cause change.

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Front

What are the three states of matter?

Back

The three states of matter are solid, liquid, and gas.

Front

What is potential energy?

Back

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

Tags

NGSS.MS-PS3-2

Front

What is kinetic energy?

Back

Kinetic energy is the energy of an object in motion.

Tags

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