The force of gravity acting on an object is called...?
Its mass
Its weight
Its downforce
Mass is?
A measure of the amount of matter in an object
A force
Measured in newtons, N
A force of 1N is approximately the force needed to lift?
A sugar cube
An apple
A car
What is the gravitational field strength of Earth?
10 N/kg
1.6 N/kg
25 N/kg
How is weight calculated?
Weight = mass × gravitational field strength
Weight = gravitational field strength ÷ mass
Weight = mass ÷ gravitational field strength
What is the weight of a 40 kg child on Earth (g = 10 N/kg)?
40 kg
4 N
400 N
A car has a weight of 10,000 N. What is the mass of the car on Earth (g = 10 N/kg)?
1000 kg
1000 N
10,000 kg
What is a newton meter?
A unit for speed
A calibrated spring-balance
A unit for weight
Which of the following statements is false?
Weight is a vector quantity
Weight is measured in newtons, N
The weight of an object is the same on the Earth and the moon
A girl has a weight of 88 N on the moon, where g = 1.6 N/kg. What is her mass?
55 kg
55 N
88 kg