6.1.2 Gravity & Inertia

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion. An object at rest stays at rest, and an object in motion stays in motion unless acted upon by an external force.

Front

How does mass affect inertia?

Back

Objects with greater mass have greater inertia, meaning they are harder to start or stop moving.

Front

What happens to a moving object when no external force acts on it?

Back

It will continue moving in a straight line at a constant speed.

Front

What is gravity?

Back

Gravity is a force that attracts two bodies toward each other, such as the Earth and an object on its surface.

Front

How does gravity affect weight?

Back

Weight is the force of gravity acting on an object. It can change depending on the strength of the gravitational force.

Front

What would happen to your weight on Jupiter compared to Earth?

Back

You would weigh more on Jupiter because it has a stronger gravitational force.

Front

What keeps the planets in orbit around the Sun?

Back

The Sun's gravitational force holds the Earth and other planets in orbit.

Front

What would happen if the Sun's gravitational force disappeared?

Back

The planets would fly away in straight lines instead of orbiting the Sun.

Front

What is the relationship between gravity and distance?

Back

The force of gravity decreases as the distance between two objects increases.

Front

What is the formula for calculating weight?

Back

Weight = mass × gravitational acceleration (W = m × g).