4th Quarter Reviewer in Physical Science

Front

The angle between the reflected ray and the normal (an imaginary line perpendicular to the surface).

Back

Angle of reflection (θr)

Front

The angle at which a wave (like light or sound) passes through a material into another medium.
This is usually used when discussing transparent materials, like glass or water.

Back

Angle of transmission

Front

The angle between the refracted ray (bent ray as it enters a new medium) and the normal.
Described by Snell’s Law, this angle is different from the angle of incidence unless the medium doesn't change.

Back

Angle of refraction (θt)

Front

This is the angle measured from the surface itself, not the normal.
It is not used in the Law of Reflection, which relies on angles measured from the normal, not the surface.

Back

Angle with the surface

Front

The distance between two consecutive crests or troughs of a light wave is called:

Back

Front

How did Aristotle describe the motion of a projectile in the horizontal direction?

Back

As a combination of natural and violent motion

Front

What is a key difference between Aristotle’s and Galileo’s views on horizontal motion?

Back

Aristotle believed a constant force was needed, while Galileo believed motion continues without force if there is no resistance.

Front

According to the wave nature of light, what is the primary role of a wave?

Back

To transfer energy without necessarily moving matter

Front

What happens to the frequency of light when it passes from one medium into another?

Back

It remains constant

Front

How did Galileo describe projectile motion?

Back

As uniform motion in the horizontal direction combined with uniformly accelerated motion in the vertical direction