Quiz about Estimating Weight and Mass

Question 1

What is the SI unit used to measure force?

Accepted Answer

newtons

Answer

pounds

Answer

grams

Answer

friction

Question 2

Without gravity we would________.

Accepted Answer

Float away

Answer

Stay in the ground

Answer

Nothing would happen.

Answer

I don't know

Question 3

What is gravity?

Accepted Answer

A force

Answer

Energy

Answer

A push

Answer

All of them

Question 4

What is mass?

Accepted Answer

How much MATTER makes up an object.

Answer

How much GRAVITY is pulling an object.

Question 5

What is weight?

Accepted Answer

BOTH answers are correct.

Answer

The measure of how HEAVY something is.

Answer

The measure of how much GRAVITY is pulling on an object.

Answer

None of them.

Question 6

What is the SI unit used to measure force?

Accepted Answer

newtons

Answer

pounds

Answer

grams

Answer

friction

Question 7

If the mass of an object on Earth is 18 grams, what would the mass of the same object be on the Moon?

Accepted Answer

18 g

Answer

4 g

Answer

0 g

Answer

32 g

Question 8

A child has a mass of 30 Kg on Earth. If the gravity on Moon is one sixth that of the Earth what is the mass of the child on Moon?

Accepted Answer

30 Kg

Answer

180 Kg

Answer

5 Kg

Answer

0 Kg

Question 9

The scientific unit of weight is

Accepted Answer

N

Answer

Kg

Answer

pounds

Answer

Kgm/s

Question 10

The amount of matter in an object is

Accepted Answer

mass

Answer

pressure

Answer

weight

Answer

force

Question 11

If an object mass =30 Kg on the Earth, what would be it's weight on Earth?

Accepted Answer

300 N

Answer

30 N

Answer

300 kg

Answer

3000N

Question 12

If the mass of an object is 1000 kg on Earth, what is it's mass on the moon?

Accepted Answer

1000kg

Answer

10kg

Answer

100kg

Answer

10,000kg

Question 13

The force of gravity on Jupiter is a little more than 2 times the gravitational force on Earth. If an object has a mass of 50 kg and a weight of 490 N on Earth, what would be the object's approximate mass and weight on Jupiter?

Accepted Answer

50 kg and 980 N

Answer

50 kg and 490 N

Answer

100 kg and 490 N

Answer

100 kg and 980 N

Question 14

If the weight of a body on the Earth's surface is 600 N, what would be it's weight on moon?

Accepted Answer

100 N

Answer

3600 N

Answer

6000 N

Answer

200 N

Question 15

If the mass of an object is 1000 kg on Earth, what is it's mass on the moon?

Accepted Answer

1000kg

Answer

10kg

Answer

100kg

Answer

10,000kg

Question 16

What is the tendency of an object to resist a change in motion?

Accepted Answer

inertia

Answer

coffee

Answer

motion

Answer

gravity

Question 17

Where would you have to travel to reduce your weight but not lose any mass?

Accepted Answer

The moon

Answer

The Sun

Answer

Jupiter

Answer

Saturn

Question 18

Who said that falling objects fall at the same rate?

Accepted Answer

Galileo

Answer

Kepler

Answer

Brahe

Answer

Copernicus

Question 19

The weight of an object _________ as it moves away from the center of Earth.

Accepted Answer

decreases

Answer

increases

Answer

stays the same

Answer

triples

Question 20

The mass of an object ___________ as it moves away from the center of Earth

Accepted Answer

stays the same

Answer

decreases

Answer

increases

Answer

doubles

Question 21

As an object's mass increases, its gravitational pull will ____________.

Accepted Answer

increase

Answer

decrease

Answer

stay the same

Answer

get weaker

Question 22

If an object has more mass, then it will

Accepted Answer

weigh more.

Answer

weigh less.

Answer

weigh the same as an object with less mass.

Answer

always have more volume than an object with less mass.

Question 23

Why would you weigh less on the moon compared to Earth?

Accepted Answer

less gravitational pull

Answer

less air

Answer

less sunlight

Answer

more gravitational pull

Question 24

Grams and kilograms measure...

Accepted Answer

mass

Answer

capacity

Answer

length

Answer

time

Question 25

Which is the smallest measurement of mass?

Accepted Answer

milligram

Answer

gram

Answer

kilogram

Question 26

Which of the following is a unit of mass?

Accepted Answer

kilogram

Answer

liter

Answer

meter

Answer

pound

Question 27

Objects with greater _________ also have greater inertia.

Accepted Answer

mass

Answer

speed

Answer

temperature

Answer

friction

Question 28

Because of inertia, a moving object will keep ________.

Accepted Answer

moving

Answer

at rest

Answer

in one spot

Answer

inertia

Question 29

Because of inertia, a resting object will remain at ________.

Accepted Answer

rest

Answer

a constant speed

Answer

school

Answer

inertia

Question 30

What kind(s) of objects have inertia?

Accepted Answer

all objects with mass

Answer

only objects at rest

Answer

only objects in motion

Answer

only objects whose motion is being changed

Question 31

An object in motion tends to stay in motion unless an ___ force acts on it.

Accepted Answer

unbalanced

Answer

balanced

Question 32

What is the difference between mass and weight? Select ALL correct answers.

Accepted Answer

Mass is measured in kilograms and weight is measured in Newtons.

Accepted Answer

Weight is affected by gravity but mass isn't.

Accepted Answer

Mass is a scalar while weight is a vector.

Accepted Answer

Weight is a force but mass is not.

Question 33

What is the weight of a 70 kg person on Mars? (g = 3.8 m/s²)

Accepted Answer

266-N

Answer

18.4-N

Answer

686-N

Answer

70-N

Question 34

Which of the objects listed below have the greatest inertia?

Accepted Answer

A 700 kg object moving at 3 m/s.

Answer

A 500 kg object that is not moving.

Answer

A 300 kg object that is not moving on the Moon.

Answer

A 250 kg object moving at 25 m/s.

Question 35

What is the mass of a 3000 N rock?

Accepted Answer

306-kg

Answer

30.6-kg

Answer

3060-kg

Answer

3.06-kg

Question 36

What device is used to measure weight?

Accepted Answer

a spring scale

Answer

a triple beam balance

Answer

stopwatch

Answer

meter stick

Question 37

What are the units of gravity?

Accepted Answer

N/kg

Answer

m/s2

Answer

N

Answer

N/m/s2

Question 38

The weight of an object decreases as it moves away from Earth.

Accepted Answer

True

Answer

False

Question 39

The force exerted perpendicular to the surface an object rests on is known as:

Accepted Answer

the normal force.

Answer

friction.

Answer

gravity.

Answer

the electromagnetic force.

Question 40

The gravitational force that an object exerts due to its mass is called:

Accepted Answer

weight.

Answer

mass.

Answer

friction.

Answer

acceleration.

Question 41

What can be said about forces when an object is accelerating?

Accepted Answer

They are unbalanced.

Answer

They are balanced.

Answer

They are non-existent.

Answer

They are infinite in magnitude.

Question 42

According to this free body diagram, in which direction is the block moving?

Accepted Answer

to the right

Answer

to the left

Answer

upward

Answer

downward

Question 43

A force is not needed to keep an object in motion.

Accepted Answer

True

Answer

False

Answer

Unknown

Question 44

Newton's 2nd Law states that F = ma.

In the free body diagram above, what would happen if the forces were unchanged but the object were more massive?

Accepted Answer

The object would accelerate at a slower rate.

Answer

The object would accelerate at a faster rate.

Answer

The object would lose mass.

Answer

The object would become even more massive.

Question 45

An astronaut with all of the necessary gear has a weight of 2,250 N on Earth (acceleration due to gravity on Earth is 9.8 m/s/s). If the acceleration due to gravity is 1.63 m/s/s on the Moon, what would the astronaut weigh on the surface of the Moon?

Accepted Answer

375 N

Answer

519 N

Answer

950 N

Answer

2150 N

Question 46

What is the mass of an object that accelerates at a rate of 2.45 m/s² with an applied force of 150 M?

Accepted Answer

61.2 kg

Answer

36.0 kg

Answer

131.3 kg

Answer

211.1 kg

Question 47

What is the acceleration of an object with a mass of 350 kg with an applied force of 620 N?

Accepted Answer

1.77 m/s2

Answer

0.68 m/s2

Answer

2.83 m/s2

Answer

3.45 m/s2

Question 48

What is the net force?

Accepted Answer

4000 N left

Answer

5000 N right

Answer

4000 N right

Answer

40 N left

Question 49

The weight of a car on a horizontal road is 23,000 N.  What is the normal force on the car?

Accepted Answer

23,000 N

Answer

2345 N

Answer

226,000 N

Answer

2345 kg

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