Law of Universal Gravitation

Newton's Law of Universal Gravitation states that:

• • Every object with mass repels other objects with mass.

• • Every object with mass attracts every other object with mass.

• • Objects only attract when in contact.

• • Gravity does not depend on mass.

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NGSS.MS-PS2-4

What happens to gravitational force when the mass of objects increases?

• • It decreases.

• • It stays the same.

• • It increases.

• • It becomes zero.

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NGSS.MS-PS2-4

Which formula represents Newton's Law of Universal Gravitation? F=GM₁M₂/r²

• F = ma

• F=GM₁M₂/r²

• F=kQ₁Q₂/r²

• 1/2mv²

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NGSS.MS-PS2-4

What is the value of the gravitational constant (G)?

• 9.81 m/s^-2

• 6.67 x 10^-10Nm³/kg^-1s^-2

• 3.14 x 10^-11m³/kg^-1s^-2

• 6.67 x 10^-11Nm²/kg²

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NGSS.HS-PS2-4

If the distance between two objects doubles, the gravitational force:

• decreases to half of the original force
• increases to double the original force
• decreases to a quarter of the original force
• remains the same

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NGSS.MS-PS2-4

Gravitational force is weakest when:

• When the masses are in motion.
• When the masses are very close together.
• When one mass is significantly larger than the other.
• When the distance between two masses is greatest.

What does the gravitational force depend on?

• • Only on the mass of the first object.

• • Only on the distance between objects.

• • Both the mass of the objects and the distance between them.

• • Only on the gravitational constant.

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NGSS.MS-PS2-4

Which of the following is NOT a consequence of Newton's Law of Universal Gravitation?

• • Planets orbit the Sun in elliptical paths.

• • Objects with mass exert attractive forces on each other.

• • Massless objects can exert gravitational forces.

• • The force weakens with the square of the distance.

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NGSS.HS-PS2-4

NGSS.HS-ESS1-4

The inverse-square law suggests that gravitational force is:

• • Proportional to distance.

• • Inversely proportional to the square of the distance.

• • Independent of distance.

• • Proportional to the square of the distance.

Tags

NGSS.HS-PS2-4

Which of the following quantities increases gravitational force?

• • Increased distance.

• • Increased mass of the objects.

• • Decreased mass.

• • Decreased gravitational constant.

Tags

NGSS.MS-PS2-4