What is the value of the universal gravitation constant?

• 6.67 x 10^-11

• 6.67 x 10^11

• 6.67 x 10^10

• 6.67 x 10^-10

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NGSS.HS-PS2-4

According to the law of universal gravitation, what is true about the attraction between objects?

• Only objects in close proximity attract each other.

• Everything in the universe is attracted to everything else.

• Only objects with similar masses attract each other.

• Only large objects attract each other.

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NGSS.HS-PS2-4

In the equation FG = G * (M1 * M2) / r^2, what does 'r' represent?

• The radius of one of the objects

• The distance between the centers of the two objects

• The sum of the masses of the two objects

• The gravitational force between the objects

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NGSS.HS-PS2-4

If two spheres with masses 5 kg and 10 kg are 0.3 meters apart, what is the gravitational force between them?

• 3.335 x 10^-9 N

• 6.67 x 10^-11 N

• 3.7 x 10^-8 N

• 4 x 10^-8 N

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NGSS.HS-PS2-4

What is the gravitational force between two objects of equal mass if the force is given as 0.0104 N and the distance between them is 0.002 meters?

• 37.5 kg

• 12.5 kg

• 50.0 kg

• 25.0 kg

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NGSS.HS-PS2-4

What is the acceleration due to gravity on Earth's surface?

• 10.2 m/s^2

• 6.67 m/s^2

• 9.8 m/s^2

• 5.98 m/s^2

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NGSS.HS-PS2-4

Which equation is used to calculate the acceleration due to gravity on a celestial body?

• g = G * r^2 / M

• g = G * r / M^2

• g = G * M / r^2

• g = G * M / r

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NGSS.HS-PS2-4

What is the escape speed of a rocket launched from Earth?

• 9,800 m/s

• 11,200 m/s

• 15,000 m/s

• 5,000 m/s

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NGSS.HS-PS2-4

If a planet has an escape speed of 5 m/s and a mass of 1.56 x 10^15 kg, what is its radius?

• 6,000 meters

• 10,000 meters

• 5,000 meters

• 8,320 meters

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NGSS.HS-PS2-1

NGSS.HS-PS2-4

What is the weight of a 360 kg spacecraft on the surface of Mars if the acceleration due to gravity on Mars is 3.73 m/s^2?

• 1,200 N

• 1,500 N

• 1,000 N

• 1,340 N

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NGSS.HS-PS2-1

NGSS.HS-PS2-4