4th Grade - Forces

Front

What is gravity?

Back

Gravity is a force that pulls objects towards each other, such as the Earth pulling objects towards its center.

Tags

NGSS.MS-PS2-4

NGSS.MS-PS2-5

Front

What is a force?

Back

A force is any push or pull that can make an object move, stop, change speed, or change direction.

Tags

NGSS.MS-PS2-2

Front

What happens when two forces are equal and opposite?

Back

When two forces are equal and opposite, they cancel each other out, and the objects do not move.

Front

What is friction?

Back

Friction is a force that opposes motion between two surfaces that are in contact.

Front

Can gravity act on objects in space?

Back

Yes, gravity acts on all objects with mass, even in space.

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

Front

What is the effect of gravity on a dropped ball?

Back

When a ball is dropped, gravity pulls it down towards the Earth.

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

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 an example of a contact force?

Back

An example of a contact force is friction, which occurs when two surfaces rub against each other.

Front

What is an example of a non-contact force?

Back

An example of a non-contact force is gravity, which acts at a distance without physical contact.

Tags

NGSS.MS-PS2-4

NGSS.MS-PS2-5

Front

How does increasing force affect motion?

Back

Increasing force can make an object accelerate faster, change direction, or move more easily.

Tags

NGSS.MS-PS2-2