Gravity and 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

What does gravity do?

Back

Gravity is a force that pulls objects toward each other. It is responsible for keeping planets in orbit around the Sun and objects on the ground.

Front

What are the two main factors that affect the strength of gravity between two objects?

Back

The two main factors are mass and distance. Greater mass increases gravitational pull, while greater distance decreases it.

Front

How does distance affect gravitational pull?

Back

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

Front

What is the relationship between mass and gravity?

Back

The greater the mass of an object, the stronger its gravitational pull.

Front

What is the effect of the Sun's gravity on planets?

Back

The Sun's gravity keeps the planets in orbit around it, with the strength of the pull varying based on the distance of each planet from the Sun.

Front

What happens to an object in motion according to inertia?

Back

An object in motion will continue to move at a constant speed in a straight line unless acted upon by an external force.

Front

What is the role of inertia in space travel?

Back

Inertia allows spacecraft to continue moving in space without the need for constant propulsion, as there is little friction to slow them down.

Front

What is an example of gravity in everyday life?

Back

An example of gravity is when you drop a ball, and it falls to the ground due to the gravitational pull of the Earth.

Front

What is the difference between mass and weight?

Back

Mass is the amount of matter in an object, while weight is the force of gravity acting on that mass.