Forces 1

What does the mass of an object depend on?

• The amount of matter it contains

• The force of gravity on it

• Its speed

• Its temperature

Which of the following statements about mass is correct?

• Mass never changes

• Mass changes with gravity

• Mass is measured in newtons

• Mass depends on location

In which unit is mass measured?

• Kilograms (kg)

• Newtons (N)

• Meters (m)

• Joules (J)

What is weight?

• The force an object experiences due to gravity

• The amount of matter in an object

• The temperature of an object

• The volume of an object

Which unit is used to measure weight?

• Newtons (N)

• Kilograms (kg)

• Liters (L)

• Seconds (s)

If you travel to the Moon, which of the following will change: your mass or your weight? Explain why.

• Only weight will change because gravity is different on the Moon.

• Only mass will change because there is less matter on the Moon.

• Both mass and weight will change because the environment is different.

• Neither mass nor weight will change.

What is the value of gravitational field strength (g) on Earth?

• 5N/kg

• 15N/kg

• 10N/kg

• 20N/kg

If an object has a mass of 1 kg, what will its weight be on Earth?

• 1N

• 5N

• 10N

• 100N

Which equation is used to calculate the weight of an object?

• W = m + g

• W = m / g

• W = m x g

• W = g - m

A rock has a mass of 2 kg. Using the equation W = m x g and knowing g = 10N/kg on Earth, what is the weight of the rock?

• 5N

• 10N

• 20N

• 2N