NWEA Science Practice Test 12

Front

What is a type of simple machine also known as an inclined plane?

Back

Ramp

Front

In an investigation to determine the effect of changing the mass of an object when an unbalanced force is applied, what is the independent variable?

Back

Mass

Front

What is the force that opposes the motion of an object called?

Back

Friction

Front

How is force measured?

Back

In Newtons.

Front

What occurs when two or more objects hit each other with a force?

Back

A collision.

Front

What is the definition of friction?

Back

A force that opposes the motion of an object.

Front

What is the unit of measurement for mass?

Back

Kilograms.

Front

What is the relationship between force, mass, and acceleration?

Back

Force = Mass x Acceleration (F = ma).

Front

What is gravity?

Back

A force that attracts two bodies towards each other.

Front

What happens to an object in motion when no net force acts on it?

Back

It continues in motion at a constant velocity.