PMA 2 Review

Front

What is the speed of light in a vacuum?

Back

The speed of light in a vacuum is approximately 299,792 kilometers per second (km/s).

Front

What happens to light when it travels through different mediums?

Back

Light travels fastest in a vacuum and slows down in denser mediums like glass and water.

Front

What is refraction?

Back

Refraction is the bending of light as it passes from one medium to another, causing objects to appear distorted.

Front

What is the relationship between distance and gravitational pull?

Back

As the distance between two objects increases, the gravitational pull between them decreases.

Front

What is the nucleus of an atom?

Back

The nucleus is the central region of an atom, containing protons and neutrons.

Front

What are tides?

Back

Tides are the rise and fall of sea levels caused by the gravitational forces exerted by the moon and the sun.

Front

What is a spring tide?

Back

A spring tide occurs when the Earth, moon, and sun are aligned, resulting in higher high tides and lower low tides.

Front

What is a neap tide?

Back

A neap tide occurs when the moon is at a right angle to the sun, resulting in lower high tides and higher low tides.

Front

What is reflection of light?

Back

Reflection is the bouncing back of light when it hits a surface, such as a mirror.

Front

What is the electron cloud?

Back

The electron cloud is the region around the nucleus of an atom where electrons are likely to be found.