8th Grade 1st 9 Weeks Exam Review

Front

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 external force.

Front

A 5 kg object accelerates at 2 m/s^2. What is the force applied to the object?

Back

Front

Example from everyday life demonstrating Newton’s 3rd Law of Motion:

Back

A person jumping off a boat and the boat moving backward

Front

If no net force acts on an object, what will happen to its motion according to the 1st Law?

Back

The object will remain at rest or continue moving at a constant velocity.

Front

The particle motion in a transverse wave is:

Back

Perpendicular to the direction of wave propagation

Front

The particle motion in a longitudinal wave is:

Back

parallel to the direction of wave propagation

Front

On a wave diagram, identify the crest, trough, wavelength, and amplitude.

Back

Crest is the highest point, trough is the lowest point, wavelength is the distance between two crests, amplitude is the height from the rest position to the crest.

Front

Difference between frequency and period of a wave.

Back

Frequency is the number of waves per second, while period is the time taken for one wave.

Front

A sound wave is which type of wave?

Back

Longitudinal wave

Front

A light wave is which type of wave?

Back

Transverse electromagnetic wave