Intro to Forces

Front

What is a force?

Back

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

Tags

NGSS.MS-PS2-2

Front

What are balanced forces?

Back

Balanced forces are forces that are equal in size but opposite in direction, resulting in no change in motion.

Front

What are unbalanced forces?

Back

Unbalanced forces are forces that are not equal and opposite, causing a change in motion of an object.

Tags

NGSS.MS-PS2-2

Front

What is net force?

Back

Net force is the overall force acting on an object after all the individual forces are combined.

Tags

NGSS.MS-PS2-2

Front

If an object is at rest, what can we say about the forces acting on it?

Back

The forces acting on it are balanced.

Front

What happens to an object when the net force is zero?

Back

The object will remain at rest or continue to move at a constant speed in a straight line.

Front

How do you calculate net force when two forces are acting in the same direction?

Back

Add the magnitudes of the two forces together.

Tags

NGSS.MS-PS2-2

Front

How do you calculate net force when two forces are acting in opposite directions?

Back

Subtract the smaller force from the larger force and the direction will be that of the larger force.

Tags

NGSS.MS-PS2-2

Front

What is the unit of force?

Back

The unit of force is the Newton (N).

Front

If Mrs. Jones pulls a rope with 73 N to the left and a student pulls with 47 N to the left, what is the net force?

Back

The net force is 120 N to the left.

Tags

NGSS.MS-PS2-2