2.2 Gravity - Word problems

What equation can be used to determine the weight of an object?

• a) Weight = mass + gravitational field strength

• b) Weight = mass - gravitational field strength

• c) Weight = mass × gravitational field strength

• d) Weight = mass ÷ gravitational field strength

What unit is used to measure weight?

• a) Newton (N)

• b) Kilogram (kg)

• c) Joule (J)

• d) Meter (m)

What unit is used to measure mass?

• a) Newton (N)

• b) Kilogram (kg)

• c) Joule (J)

• d) Meter (m)

What unit is used to measure gravitational field strength?

• a) Newton (N)

• b) Kilogram (kg)

• c) Joule (J)

• d) Newton per kilogram (N/kg)

What does it mean when people say that gravity is different on different planets?

• a) The weight of objects is different on different planets

• b) The mass of objects is different on different planets

• c) The gravitational field strength is different on different planets

• d) The gravitational force is different on different planets

If an object has a mass of 5 kg and the gravitational field strength is 10 N/kg, what is its weight?

• a) 5 N

• b) 10 N

• c) 15 N

• d) 50 N

If an object has a weight of 30 N and the gravitational field strength is 5 N/kg, what is its mass?

• a) 5 kg

• b) 6 kg

• c) 25 kg

• d) 35 kg

Which of the following is NOT a factor in determining the weight of an object?

• a) Mass

• b) Volume

• c) Gravitational field strength

True or False: Weight is a measure of the amount of matter in an object.

• a) True

• b) False

True or False: The mass of an object is the same everywhere in the universe.

• a) True

• b) False