8th grade Forces Review

Front

A force that pulls all objects that have mass toward one another is known as _______________.

Back

gravity

Front

Which of the following is not a characteristic of balanced forces? A. Equal forces, B. Net force equals 0 Newtons, C. Causes a change in an object’s motion

Back

C. Causes a change in an object’s motion

Front

______________ forces are unequal forces that cause a change in an object’s motion.

Back

unbalanced

Front

Which of the following is an example of unbalanced forces? A. Pushing a lawnmower across the yard, B. A car traveling at a constant speed, C. A person sitting on a chair, D. A book sitting on a shelf

Back

A. Pushing a lawnmower across the yard

Front

_________________ is the overall force exerted on an object measured in Newtons.

Back

net force

Front

What is the unit of force?

Back

Newton (N)

Front

What is the difference between balanced and unbalanced forces?

Back

Balanced forces do not cause a change in motion, while unbalanced forces do.

Front

If two forces of 5 N and 3 N act in the same direction, what is the net force?

Back

8 N

Front

If a 10 N force pulls to the right and a 4 N force pulls to the left, what is the net force?

Back

6 N to the right

Front

What happens to an object at rest when balanced forces act on it?

Back

It remains at rest.