Mass and Gravity: A Quiz

A student claims that two objects with different masses will fall at the same rate in a vacuum. Use reasoning and evidence to support or refute this claim.

• Refute, because heavier objects fall faster.

• Support, because gravitational acceleration is constant.

• Refute, because lighter objects fall slower.

• Support, because air resistance affects both equally.

If the mass of an object is doubled, what happens to the gravitational force acting on it, assuming the acceleration due to gravity remains constant?

• It remains the same.

• It is halved.

• It is doubled.

• It is quadrupled.

Consider two objects, one with a mass of 3 kg and another with a mass of 6 kg. If both are dropped from the same height, which statement best describes their motion in the absence of air resistance?

• The 3 kg object will fall faster.

• The 6 kg object will fall faster.

• Both will fall at the same rate.

• The 3 kg object will fall slower.

Calculate the gravitational force on a 50 kg object on Earth.

• 5 N

• 500N

• 50 N

• 0.2 N

Explain why astronauts appear to float inside the International Space Station, even though gravity is still acting on them.

• They are too far from Earth for gravity to act.

• They are in free fall, experiencing microgravity.

• The space station has no gravity.

• They are weightless due to zero gravity.

• 240 N

• 200 N

• 163.3 N

• 244.9 N

Discuss the relationship between mass and gravitational force using the concept of gravitational fields.

• Gravitational force decreases with increasing mass.

• Gravitational force is independent of mass.

• Gravitational force increases with increasing mass.

• Gravitational force is inversely proportional to mass.

• 120 N

• 130 N

• 140 N

• 150 N

A girl weighs 300 N what is her mass here on Earth?

• 0.1 kg

• 3000 kg

• 30kg

• 300 N

Tags

NGSS.MS-PS2-2

You fly to Venus and research if life can exist there. Your mass is 100 kg and have a weight of 90 N what is the Gravitational strength of Venus?

• 900 N/kg

• 9 N/kg

• 0.9 N/kg

• 9000 N/ kg

Tags

NGSS.MS-PS2-2