Semester Exam- Fall Topics

Front

What is the purpose of the 31 GPS satellite network?

Back

To transmit radio waves to users for services like TV, phones, maps, etc.

Front

What law illustrates that pushing a full grocery cart requires more force than pushing an empty cart?

Back

Newton's 2nd Law of Motion.

Front

What is the unit called that measures force?

Back

Newton.

Front

What force causes a compass needle to move?

Back

Magnetism.

Front

A wave that needs a medium to travel is called _________.

Back

A mechanical wave or longitudinal wave.

Front

What is Newton's 1st Law of Motion?

Back

An object at rest stays at rest, and an object in motion stays in motion unless acted upon by an unbalanced force.

Front

What is the definition of force?

Back

A push or pull on an object that can cause it to accelerate.

Front

What is the formula for calculating force?

Back

Force = mass × acceleration (F = m × a).

Front

What is an example of a mechanical wave?

Back

Sound waves.

Front

What is the difference between a transverse wave and a longitudinal wave?

Back

In a transverse wave, the particles move perpendicular to the direction of the wave, while in a longitudinal wave, the particles move parallel to the direction of the wave.