Ch 3 Lesson 1-- The Force of Gravity

Front

What is the force of gravity?

Back

The force of gravity is the attraction between two objects with mass, which pulls them toward each other.

Front

Do all objects with mass experience the force of gravity?

Back

Yes, all objects with mass experience the force of gravity.

Front

What is the definition of 'force'?

Back

A force is any push or pull acting on an object.

Front

How does mass affect the force of gravity?

Back

The greater the mass an object has, the greater the force of gravity acting on it.

Front

What is a light-year?

Back

A light-year is the distance that light travels in one year.

Front

What does the pull of gravity affect?

Back

The pull of gravity affects an object's weight.

Front

What is weight?

Back

Weight is the force exerted by gravity on an object, dependent on its mass and the gravitational acceleration.

Front

What is gravitational acceleration on Earth?

Back

Gravitational acceleration on Earth is approximately 9.81 m/s².

Front

What is the relationship between mass and weight?

Back

Weight is directly proportional to mass; as mass increases, weight increases.

Front

What is the formula for calculating weight?

Back

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