NWEA Science Practice Test 12

Front

What is motion?

Back

Motion is described as an object's speed and direction.

Front

What makes an investigation a fair test?

Back

An investigation is a fair test if it has only one manipulated (independent) variable.

Front

What occurs during a collision?

Back

A collision occurs when two or more objects hit each other with a force.

Front

What is a ramp?

Back

A ramp is a type of simple machine also known as an inclined plane.

Front

What opposes the motion of an object?

Back

A force that opposes the motion of an object is called friction.

Front

What is speed?

Back

Speed is the distance an object travels in a certain amount of time.

Front

What is direction in motion?

Back

Direction is the path that an object follows as it moves.

Front

What is an unbalanced force?

Back

An unbalanced force is a force that causes an object to change its motion.

Front

What is gravity?

Back

Gravity is a force that pulls objects toward each other, such as the Earth pulling us down.

Front

What is a simple machine?

Back

A simple machine is a device that makes work easier by allowing us to push or pull with less effort.