Non-contact Forces: Gravitational Force

Front

What is gravitational force?

Back

Gravitational force is the attraction between two objects with mass. It is a non-contact force that pulls objects toward each other.

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NGSS.MS-PS2-4

Front

How does mass affect gravitational attraction?

Back

The greater the mass of an object, the stronger its gravitational pull. Objects with larger masses attract each other more than those with smaller masses.

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NGSS.MS-PS2-4

Front

What is the relationship between distance and gravitational force?

Back

Gravitational force decreases as the distance between two objects increases. The closer the objects are, the stronger the gravitational attraction.

Front

What is weight?

Back

Weight is the force exerted by gravity on an object. It is calculated as the mass of the object multiplied by the acceleration due to gravity.

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NGSS.MS-PS2-4

Front

How does weight change on different planets?

Back

Weight changes depending on the gravitational pull of the planet. An object will weigh less on a planet with weaker gravity compared to Earth.

Front

What is the weight of a 10 kg object on Earth?

Back

The weight of a 10 kg object on Earth is approximately 98 newtons (using the formula weight = mass x gravity, where gravity is about 9.8 m/s²).

Front

If an object weighs 100 newtons on Earth, what will it weigh on Mercury?

Back

It will weigh less than 100 newtons because Mercury has a weaker gravitational pull than Earth.

Front

What happens to two objects dropped from the same height in a vacuum?

Back

In a vacuum, both objects will hit the ground at the same time regardless of their mass, as there is no air resistance.

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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 of gravity acting on that mass and can change depending on the gravitational field.

Front

What is the formula for calculating weight?

Back

Weight (W) = Mass (m) x Gravitational acceleration (g).

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NGSS.MS-PS2-4