Assessment: Gravity

Front

What is gravity?

Back

Gravity is the force that pulls objects toward the center of the Earth.

Front

What happens to objects in a world without gravity?

Back

Objects would float freely in the air and people would feel weightless.

Front

Why does a ship seem to disappear when it passes the horizon?

Back

As a ship moves away, it goes below the horizon because the Earth is curved, making it appear to disappear.

Front

What does 'spherical' mean?

Back

Spherical means rounded, like a ball.

Front

What is a lunar eclipse?

Back

A lunar eclipse occurs when Earth comes between the Sun and the Moon, causing Earth's shadow to fall on the Moon.

Front

What is the effect of gravity on jumping?

Back

Gravity pulls you back down to the ground after you jump.

Front

How does gravity affect trees and plants?

Back

Gravity causes trees and plants to grow straight up towards the sky.

Front

What would happen to cars in a world without gravity?

Back

Cars would not be able to drive on the roads as they would float.

Front

What is the relationship between gravity and weight?

Back

Weight is the measure of the force of gravity acting on an object.

Front

How does gravity affect the movement of planets?

Back

Gravity keeps planets in orbit around the Sun.