Mass and Weight

The options show the weights of some masses on the surface of four different planets.

Which planet has the greatest gravitational field strength?
1. mass: 0.5 kg ; weight: 20 N
2. mass: 2.0 kg ; weight: 20 N
3. mass: 0.5 kg ; weight: 40 N
4. mass: 2.0 kg ; weight: 40 N
Which would be the least likely to sink into soft ground?
1. a loaded lorry with four wheels
2. a loaded lorry with six wheels
3. an empty lorry with four wheels
4. an empty lorry with six wheels
The gravitational field strength is 2 N/kg on the Moon and 10 N/kg on the Earth.
An astronaut returns from the Moon to the Earth.

What effect does this have on the astronaut's mass and weight?
1. mass : less on Earth ; weight : same on Earth and Moon
2. mass : more on Earth ; weight : same on Earth and Moon
3. mass : same on Earth and Moon ; weight : less on Earth
4. mass : same on Earth and Moon ; weight : more on Earth
An object weighs 8.5 N on the Moon. The gravitational field strength on the Moon is 1.7 N/kg.

What is the mass of the object?
1. 0.2 kg
2. 5.0 kg
3. 6.8 kg
4. 14.5 kg
What is the name of the property of a body that resists a change in its state of rest or of uniform motion?
1. Acceleration
2. Density
3. Inertia
4. Velocity
What are the names of the units of mass and weight?
1. Mass: kilogram ; Weight: kilogram
2. Mass: kilogram ; Weight: newton
3. Mass: newton ; Weight: kilogram
4. Mass: newton ; Weight: newton
Which of the following depends only on the amount of substance in a body?
1. Density
2. Mass
3. Volume
4. Weight
A load is placed on balance X and then on balance Y.

What is measured by each balance?
1. Balance X: mass ; Balance Y: density
2. Balance X: mass ; Balance Y: weight
3. Balance X: weight ; Balance Y: density
4. Balance X: weight ; Balance Y: mass
Which property of a body will be affected by a change in gravitational field?
1. Mass
2. Temperature
3. Volume
4. Weight
An astronaut's boots weigh 100 N on Earth, where acceleration of free fall is 10 m/s².

How much will they weigh on Mars, where acceleration of free fall is 4 m/s²?
1. 25 N
2. 40 N
3. 100 N
4. 250 N
A satellite is launched from Earth into the orbit.

What happens to the mass and weight of the satellite?
1. Mass: decreases ; Weight: stays constant
2. Mass: stays constant ; Weight: decreases
3. Mass: stays constant ; Weight: increases
4. Mass: increases ; Weight: decreases
Which of the following statements is correct?
1. The mass of a body is the same on the Earth as on the Moon.
2. The weight of a body is the same on the Earth as on the Moon.
3. The weight of a body on the Moon is zero.
4. Both mass and weight can be measured in kilograms.
At a point on the surface of the Earth, the gravitational field strength is 9.8 N / kg.

Which pair of values for mass and weight are correct for an object placed at this point?

mass / kg weight / N
A 9.8 10
B 10 9.8
C 10 98
D 98 10
1. A
2. B
3. C
4. D
A spanner is taken into outer space in a space vehicle.

As the vehicle moves from the Earth into outer space, which changes take place to the spanner?

change in mass change in weight
A no no
B no yes
C yes no
D yes yes
1. A
2. B
3. C
4. D
The diagram represents a block of wood at rest on a horizonal plane.

In which direction does the block's weight act?
1. A
2. B
3. C
4. D

	mass / kg	weight / N
A	9.8	10
B	10	9.8
C	10	98
D	98	10

	change in mass	change in weight
A	no	no
B	no	yes
C	yes	no
D	yes	yes

Mass and Weight

Multiple Choice Questions