Force

How do forces affect the motion of an object?

Lesson:

A force can cause a resting object to move, or it can accelerate a moving object by changing the object's speed or direction.

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1 Newton (N) is the force that causes a 1-kg mass to accelerate at a rate of   1 m/s/s (or 1 m/s²). In other words, 1N = 1 kg X m/s².

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Multiple Choice

What is the label for force?

• Newton (N)

• kilogram (kg)

• m/s/s

• m/s

Multiple Choice

When an unbalanced force acts on an object, the object ___________.

• accelerates

• stays still

• jumps up and down

• breaks