Gravity and Planetary Motion

Front

What is gravity?

Back

Gravity is a force that attracts two bodies towards each other, depending on their masses and the distance between them.

Tags

NGSS.MS-PS2-4

Front

What is the difference between mass and weight?

Back

Mass is the amount of matter in an object and does not change regardless of location, while weight is the force exerted by gravity on that mass and can change depending on the gravitational field.

Front

Which planet has the lowest gravity?

Back

Planet B has the lowest gravity.

Tags

NGSS.MS-PS2-4

NGSS.MS-PS2-5

Front

What happens to an object's weight if it is taken to a place with less gravity?

Back

The object's weight decreases because weight is dependent on the gravitational force acting on it.

Front

What is the relationship between mass and weight?

Back

Weight is directly proportional to mass; as mass increases, weight also increases, assuming constant gravity.

Tags

NGSS.MS-PS2-4

Front

Why do astronauts feel weightless in space?

Back

Astronauts feel weightless because they are in free fall, moving along with their spacecraft, which is falling towards Earth but also moving forward.

Front

What is the gravitational force?

Back

Gravitational force is the attractive force between two objects with mass, which decreases with increasing distance between them.

Tags

NGSS.MS-PS2-4

NGSS.MS-PS2-5

Front

What is the formula for calculating weight?

Back

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

Front

What is the gravitational acceleration on Earth?

Back

The gravitational acceleration on Earth is approximately 9.81 m/s².

Front

How does the mass of a planet affect its gravity?

Back

The greater the mass of a planet, the stronger its gravitational pull.

Tags

NGSS.MS-PS2-4