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Yr8 EoR Physics Mega Quiz DCSG

Total questions: 151

Worksheet time: 4hrs 12mins

Name
Class
Date
1.
What pressure does a 4000N horse exert on the ground if each foot is 10cm2?
a)
40 N/cm2
b)
100 N/cm2
c)
400 N/cm2
d)
10 N/cm2
2.
If the horse reared up on 2 legs what effect would it have on the pressure?
a)
it will exert half the pressure it did before
b)
it will exert the same pressure it did before
c)
it will exert twice the pressure it did before
d)
it will exert four times the pressure it did before
3.
Army tank tracks are useful for travelling through the mud because..
a)
they decrease the force the vehicle exerts on the ground
b)
they increase the force the vehicle exerts on the ground
c)
they decrease the pressure the vehicle exerts on the ground
d)
they increase the pressure the vehicle exerts on the ground
4.
Which of these animals would probably cause the greatest pressure on the ground?
a)
A fat cow with big feet
b)
A fat cow with small feet
c)
 A calf with big feet
d)
A calf with small feet
5.
How would you calculate the force to be used on a brake of area 0.5cm2 if the slave cylinder has a 4cm2 area and needs 800N to stop the car.
a)
4 x 800 x 0.5
b)
800/0.5 x 4
c)
0.5 x 4 x 800
d)
800 x 0.5 /4
6.
What is the equation used to calculate pressure?
a)
pressure= force/mass
b)
pressure =mass/volume
c)
pressure=area/force
d)
pressure=force/area
7.
What is the unit of measurement for pressure?
a)
pascal
b)
grams
c)
milliters
d)
meters
8.
Which of the following would increase the pressure on a system?
a)
Increase the Temperature
b)
Pump in more gas
c)
Decrease the volume
d)
All of these
9.

Diagram shows the design of a dam. Why does the thickness of the dam increase with its depth?

a)

The design of this structure is stronger.

b)

Water pressure increases with depth.

c)

The cost of construction is lower.

d)

Water pressure acts uniformly in all directions.

10.

In the image which hole will allow the water to travel furthest?

a)

A

b)

B

c)

C

11.

Pressure is force per unit area. What is the SI unit for pressure?

a)

N

b)

Nm

c)

Pa

d)

kPa

12.

Choose two correct applications that exert high pressure.

a)

Tractors have big and wide wheels

b)

Press a thumbtack into a plank

c)

Studs on the sole of football boots

d)

Shoulder pad for a school bag

13.

Amira puts two books on a table as shown in the diagram. The books are the same size and mass. Which book exerts greater pressure on the table?

a)

A

b)

B

14.

What pressure will be exerted by a 10 N box that has equal sides of 1 meter?

a)

1 Pa

b)

2 Pa

c)

5 Pa

d)

10 Pa

e)

20 Pa

15.
Molly investigated if the age of students caused them to be better drivers. What is the dependent variable?
a)
Type of car
b)
Skill of driving
c)
Age of student
16.
Sam wanted to know if the color of the chair you sat in when taking a test affected your test grade. What is the dependent variable.
a)
Color or chair
b)
Grade on test
c)
Age of students
17.
The part of the experiment that remains the same for the control and experimental group.
a)
constants
b)
control
c)
independent
d)
dependent
18.
A student is planning an experiment to find out how the height from which he drops a ball affects how high the ball bounces. The dependent variable is the _____.
a)
Diameter of the ball
b)
Force acting on the ball
c)
Height that the ball bounces
d)
Height from which the ball is dropped
19.
A student is planning an experiment to find out how the height from which he drops a ball affects how high the ball bounces. The dependent variable is the _____.
a)
Diameter of the ball
b)
Force acting on the ball
c)
Height that the ball bounces
d)
Height from which the ball is dropped
20.

What kind of graph do you use for data (dependent variable) when it is continuous for a number?

a)

Bar Graph

b)

Line Graph

21.

What kind of graph do you se when the data in not continuous (or words)?

a)

Bar Graph

b)

Line Graph

22.
Which of the following is an example of a step in an EXPERIMENTAL scientific investigation?
a)
Recording the sound of test tubes breaking.
b)
Noting a color change in a test tube.
c)
Placing test tubes in a water bath.
23.
Should experiments be repeated over and over to see if the results are the same each time?
a)
yes
b)
no
24.
Mr. S. sets up an experiment to see how toy cars with different masses affects the distance they roll down a ramp.  Identify the independent variable.
a)
distance traveled by the cars
b)
height of the ramp
c)
mass of the car
d)
number of cars
25.

Gabriel sprinted down the hallway for a science project. He ran a total of 40 meters in 20 seconds. What was his average speed?

a)

2 meters per second

b)

20 meters per second

c)

40 meters per second

d)

10 meters for second

26.

A truck driver drove his truck for 50 m. She drove that distance in a total of 20 seconds. What was the truck driver's average speed?

a)

4 m/s

b)

2.5 m/s

c)

5 m/s

d)

0.5 m/s

27.

Pablo, Yuridia and Zachary decided to run a race at the same pace together. If they ran 2000 m in a total of 600 seconds, what was their average speed?

a)

33 m/s

b)

3.3 m/s

c)

330 m/s

d)

0.033 m/s

28.

What is the speed of an object that travels 60 meters in 4 seconds?

a)

240 m/s

b)

15 m/s

c)

0.067 m/s

d)

15 kmph

29.

Sophia was trying to explaining to Tyler how to find the speed. What equation should she use to calculate speed?

a)

speed = time/distance

b)

speed = distance X time

c)

speed = voleicty X time

d)

speed = distance/time

30.
A different runner trains for a marathon for 6 months by eating nothing but bags of french fries from McDonalds. They run a 10 meter dash in 100 seconds. What is their speed?
a)
0.01 m/s
b)
0.1 m/s
c)
1 m/s
d)
10 m/s
31.
What is the speed of a cheetah that travels 112.0 m in 4.0 s?
a)
0.0357 m/s
b)
28.0 km/s
c)
0.036 m/s
d)
28.0 m/s
32.
The unit for speed is:
a)
m/s
b)
s
c)
m
d)
km
33.

1. A quarterback threw a football 50.0 meters. The ball's time in the air was 3.0 seconds. What speed did the ball travel through the air?

a)

150 m/s

b)

0.060 m/s

c)

6.0x10-1 m/s

d)

17 m/s

34.

A softball player took 3.5 seconds to run from the batter’s box to 1st base. She can run 1.71 meters per second. What distance did she cover?

a)

513 m

b)

51.3 m

c)

5.13 m

d)

0.513 m

35.

At a track meet, Camille ran the 5000 meter race at an average speed of 6.0 meters per second. How long did it take her to complete the race in minutes?

a)

14 min

b)

830 min

c)

833 min

d)

500 min

36.

Paola ran a 440 meter race in 45 seconds. What was her average speed?

a)

9 sec/m

b)

9.7 sec/m

c)

9.7 m/s

d)

9 m/s

37.

Tianna ran a 100 meter dash in 72 seconds. What was her average speed?

a)

1.4 m/s

b)

14 m/s

c)

0.14 m/s

d)

0.14

38.
Friday, Brooklyn walked her usual 5000 m to school in 60 minutes.  On Monday her speed was 75 m/min.  On which day was Brooklyn's speed better?
a)
Monday, she really wanted to get to school
b)
Friday, she was excited to celebrate Fri-yay!
c)
Tuesday, she was sleep walking.
d)
Saturday, she forgot where she was going.
39.
A jet airliner flies 4100 km from New York City to San Francisco in 4.25 hours.  What is its average speed?
a)
964.71 km/hr
b)
96.47 km/hr
c)
17,425 km/hr
d)
174.25 km/hr
40.
How long would it take a bus traveling at 50 km/h to travel 125 km?
a)
6,250 hours
b)
2.5 km
c)
2.5 hours
d)
6,250 km
41.
A bus carrying Ava's friends to a soccer game traveled 10 km in 30 minutes. To determine the average speed of the bus in km/hr, your first step would be to __________?
a)
convert speed to distance
b)
convert minutes to hours
c)
convert hours to seconds
d)
convert seconds to hours
42.
If, on a hike, Nathaniel traveled 2,800 m in 2 hours, what was his average speed in m/hr?
a)
5,600 m/hr
b)
140 m/hr
c)
56 m/hr
d)
1,400 m/hr
43.
Using the graph provided, how long did it a ball to roll 30 cm?  What was the average speed of the ball?
a)
35 seconds, 1.17 cm/s
b)
30 seconds, 1 cm/s
c)
30 seconds, 1.17 cm/s
d)
35 seconds, 1 cm/s
44.

Who wore it best?

a)

Justin Timberlake

b)

The dog

c)

Neither of them

d)

It's a tie

45.

How long does it take a car to travel 40m at 12m/s?

a)

4.8 s

b)

480 s

c)

3.33 s

d)

33.3 s

46.

How far does a truck move if it's travelling at 15m/s for 20 min?

a)

18000 m

b)

300 m

c)

0.75 m

d)

180 km

47.

A measure of how much matter (particles) an object has is--

a)

weight

b)

gravity

c)

mass

d)

volume

48.

What is the definition of "weight"?

a)

measure of the gravitation pull on an object

b)

the time it takes to get on a ride

c)

the amount of matter in an object

d)

the size of an object

49.
If an object has more mass, then it will
a)
weigh more.
b)
weigh less.
c)
weigh the same as an object with less mass.
d)
always have more volume than an object with less mass.
50.
Why would you weigh less on the moon compared to Earth?
a)
less air
b)
less sunlight
c)
more gravitational pull
d)
less gravitational pull
51.

Grams and kilograms measure...

a)

capacity

b)

length

c)

time

d)

mass

52.

The one that stays the same no matter where you are.

a)

Bass

b)

Weight

c)

Mass

d)

Weather

53.

The unit that goes with weight.

a)

Kilogram

b)

Newton

c)

Milliliter

d)

Mile

54.

The one that is affected by gravity.

a)

Volume

b)

Mass

c)

Weight

d)

Ego

55.

Mass is measured with a

a)

Flask

b)

Ruler

c)

Balance

d)

Scale

56.
A person would weigh less on on the Moon than on the Earth because . . .
a)
Moon has more mass, and therefore more gravity
b)
Moon has less mass, and therefore more gravity
c)
Moon has more mass, and therefore less gravity
d)
Moon has less mass and therefore less gravity
57.

What does this tool measure?

a)

weight

b)

meters

c)

mass

d)

force

58.
What best describes the mass and weight of a person as they move around the universe?
a)
mass and weight changes
b)
Mass and weight stays constant
c)
weight remains constant, mass changes
d)
Mass stays constant, weight changes
59.
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?
a)
50 kg and 490 N
b)
100 kg and 490 N
c)
50 kg and 980 N
d)
100 kg and 980 N
60.

A squirrel has a weight of 49 N. What is his Mass if he is running on the Ground? (g = 10 N/kg)

a)

4.9 kg

b)

9.8 N/kg

c)

0.5 kg

d)

5.0 kg

61.

A girl weighs 300 N what is her mass here on Earth? (g = 10 N/kg)

a)

40.8 kg

b)

41 kg

c)

30 kg

d)

300 N

62.

Find the weight of a 20g object: (g = 10 N/kg)

a)

200N

b)

20g

c)

0.2N

d)

0.02kg

63.

What is the weight of a 456g object? (g = 10 N/kg)

a)

456g

b)

0.456kg

c)

4.56N

d)

456N

64.

You have a ball with a weight of 76N. What is the mass of the ball? (g = 10 N/kg)

a)

76N

b)

76kg

c)

7.6kg

d)

7.6N

65.

You fly to Venus and research if life can exist there. Your mass is 100 kg and have a weight of 90 N what is the gravitational field strength, g, of Venus?

a)

900 N/kg

b)

9 N/kg

c)

0.9 N/kg

d)

9000 N/ kg

66.

You fly to an unknown planet and research if life can exist there. A banana has a mass 0f 75g and have a weight of 50 N what is the gravitational field strength, g, of this planet?

a)

0.67 N/kg

b)

66.7 N/kg

c)

666.7 N/kg

d)

9000 N/ kg

67.
What is the moment acting on the seesaw?
a)
1.6Nm
b)
15Nm
c)
16N
d)
4Nm
68.

A seesaw is unbalanced with two people of different masses sitting equal distances from the center. Which of the following will result in the seesaw being balanced?

a)

The larger person moving further away from the center.

b)

Moving the smaller person closer to the center.

c)

Moving the smaller person further from the center.

d)

Making the larger person do nothing.

69.
The easiest way to open a heavy door  is by applying the force
a)
Near the hinges
b)
In the middle of the door
c)
At the edge of the door far from the hinges
d)
At the top of the door
70.

A wrench is used to tighten a nut. A 15N perpendicular force is applied 50cm away from the axis of rotation. What is the moment applied to the wrench?

a)

7.5 Nm

b)

1.5 Nm

c)

750 Nm

d)

150 Nm

71.

A nut can be loosened more easily with

a)

a short spanner because a larger turning effect can be produced.

b)

a long spanner because a larger turning effect can be produced.

c)

a long spanner because a larger force can be produced.

d)

a short spanner because a larger force can be produced.

72.

What to we call forces applied to anything that turns?

a)

Minute

b)

Moment

c)

Minimum

d)

Monument

73.

What is the size of the moment shown by the black arrow?

a)

30 Nm

b)

36 Nm

c)

40 Nm

d)

60 Nm

74.

What is the moment acting on this crane caused by the load?

a)
80,000Nm
b)
100,000Nm
c)
120,000Nm
d)
140,000Nm
75.
What is the moment produced by the 15 N?
a)
15 Nm (clockwise)
b)
150 Nm (anti - clockwise)
c)
1.5 Nm (anti - clockwise)
d)
0.15 Nm (clockwise)
76.

The figure below shows a man lifting a heavy rock using a steel bar. He pushes downwards on the end of the bar with a force F.


Which pivot positions allows the force F to be as small as possible?

a)

A

b)

B

c)

C

d)

D

77.
2. The place where a lever pivots is called the _______.
a)
Pivot point
b)
Tissue
c)
Fulcrum
78.
Unit of force.
a)
Meter
b)
Centimeter
c)
Newton
79.
What does this graph represent?
a)
Constant Speed
b)
Acceleration
c)
Not moving
80.
How long did it take this object to travel back to its reference/starting point?
a)
20 s
b)
30 s
c)
60 s
d)
100 s
81.
At 60 seconds, how far had this object traveled? 
a)
0 m
b)
10 m
c)
20 m
d)
40 m
82.
What does this graph represent?
a)
Constant speed
b)
Acceleration
c)
Not moving
83.
What is happening at D?
a)
Stationary
b)
Accelerating
c)
Fast steady speed; moving away from the starting position
d)
Slower steady speed; moving away from the starting position
84.
What is happening at C?
a)
Stationary
b)
Accelerating
c)
Fast steady speed; moving away from the starting position
d)
Slower steady speed; moving away from the starting position
85.
What does this graph represent?
a)
Constant speed
b)
Acceleration
c)
Not moving
86.
How long did it take this object to travel 10 m?
a)
0 s
b)
10 s
c)
15 s
d)
20 s
87.
Which runner had a head start?
a)
A
b)
B
c)
C
88.
What two measurements are necessary for calculating speed?
a)
Mass and time
b)
Temperature and mass
c)
Mass and distance
d)
Distance and time
89.
A measurement of how fast an object is moving
a)
Velocity
b)
Speed
c)
Vector
d)
Acceleration
90.
Can be measured in meters (m)
a)
Distance
b)
Time
c)
Speed
d)
Acceleration
91.
What does this graph represent?
a)
Constant speed
b)
Acceleration
c)
Not moving
92.

In which of the following graphs below are both runners moving at the same speed?

a)
b)
c)
d)
93.

Match the description to the graph:

"The car is coming back."

a)
b)
c)
d)
94.

Match the description to the graph:

"The car is traveling at a constant speed."

a)
b)
c)
d)
95.
What does this graph represent?
a)
Constant speed
b)
Acceleration
c)
Not moving
96.

Match the description to the graph:

"The car is traveling at a constant speed."

a)
b)
c)
d)
97.

Segment B-C The bus is _________________.

a)

at rest

b)

returning (to original position)

c)

moving forward

98.
What is the equation to calculate time?
a)
time = speed/distance
b)
time = distance/speed 
c)
time = speed x distance 
d)
time = distance x speed
99.

What is the force that pulls us towards the Earth?

a)

gravity

b)

weight

c)

friction

d)

mass

100.

What is 'drag' another name for? (Select 2 answers)

a)

friction

b)

air resistance

c)

friction

d)

weight

101.
What are balanced forces?
a)
forces of the same size, in opposite directions
b)
the same size in the same direction
c)
forces in opposite directions
d)
forces at right angles to each other
102.
What is the name for a single force on an object with the same effect as all the forces combined?
a)
big
b)
total
c)
resultant
d)
sum
103.
Is the car
a)
Stationary
b)
Moving at constant speed
c)
Accelerating
d)
Decelerating
104.
Is the car
a)
Stationary
b)
Moving at constant speed
c)
Accelerating
d)
Decelerating
105.
Is the car
a)
Stationary
b)
Moving at constant speed
c)
Accelerating
d)
Decelerating
106.
In a tug of war the left team pulls with a force of 200N. The right team pulls with a force of 150N.What is the resultant force?
a)
50N to the left.
b)
350N to the left.
c)
350N to the right.
d)
50N to the right.
107.

The unit of force is...

a)

m/s

b)

m

c)

N

d)

kg

108.

What is the resultant force?

a)

40 N, Left

b)

0 N, Balanced

c)

400 N, Right

d)

40 N, Right

109.

What is the resultant force?

a)

400 N, Up

b)

400 N, Down

c)

800 N, Up

d)

800 N, Down

110.

What is the resultant force?

a)

17 N, Left

b)

6N, Right

c)

11N , Left

d)

12N, Left

111.

What is the resultant force?

a)

40N, Left

b)

40N, Right

c)

0N, Balanced

d)

75N, Right

112.
How will this object move? 
a)
It won't move. 
b)
It will move to the right. 
c)
It will move to the left. 
d)
It will move in both directions. 
113.
Are forces balanced or unbalanced when a car is moving at a constant speed in a straight line?
a)
Balanced
b)
Unbalanced
114.
Are forces balanced or unbalanced when a marble rolls down a ramp?
a)
Balanced
b)
Unbalanced
115.
Are forces balanced or unbalanced when skateboarding down a ramp?
a)
Balanced
b)
Unbalanced
116.

Calculate the resultant force acting on the ball.

a)

10 N to the left

b)

10 N to the right

c)

0 N

d)

5 N to the right

117.

Calculate the resultant force acting on the paper aeroplane.

a)

2 N to the left

b)

2 N to the right

c)

6 N to the right

d)

6 N to the left

118.

Calculate the resultant force acting on the block.

a)

21 N to the left

b)

21 N to the right

c)

1 N to the left

d)

1 N to the right

119.

Calculate the resultant force acting on the parachute.

a)

19 N upwards

b)

19 N downwards

c)

5 N upwards

d)

5 N downwards

120.
A ____________ is a push or a pull on an object.
a)
chemical
b)
force
c)
magnet
d)
gravity
121.
Balanced or Unbalanced?
a)
Balanced 
b)
Unbalanced
122.

Calculate the resultant force.

a)

60N, Left

b)

40N, Right

c)

0N

d)

60N, Right

123.

Who discovered Hooke's law?

a)

Robert Hooke

b)

Charlie

c)

Newton

124.

___________ is the unit of force

a)

Km

b)

cm

c)

N

125.

________________ force acts on an object when it falls.

a)

Gravity

b)

Electromagnet

c)

Upthrust

126.

A graph of extension against force for an elastic material is:

a)

A downward curve

b)

An upward curve

c)

A straight line from the origin

127.

An elastic material can change shape when ________ is exerted on it.

a)

a force

b)

a moment

c)

an acceleration

128.

When you apply a force to an object, the object can change shape. If tension is applied, the object may be stretched. We say the object has been __________.

a)

compressed

b)

extended

c)

twisted

129.

When you apply a force to an object, the object can change shape. If a compression force is applied, the object may be squashed. We say the object has been __________.

a)

compressed

b)

extended

c)

twisted

130.

The _________ of an object is the increase in its length when it is stretched.

a)

compression

b)

extension

131.

Who discovered Hooke's law?

a)

Robert Hooke

b)

Charlie

c)

Newton

132.

If the original length of a spring is 20m and its extended length is 30m. What is the extension?

a)

20m

b)

12m

c)

75m

d)

45m

e)

10m

133.

Are forces applied when the objects involved are in direct contact.

a)

Contact forces

b)

Normal forces

c)

action-at-a-distance forces

134.

When a body moves another.

a)

Normal force

b)

Friction

c)

Elastic

d)

Pushing or pulling

135.

Force with which objects tend to return to its original state after being stretched or compressed by an external force.

a)

Push or pull

b)

Tension

c)

Elasticity

d)

Friction

136.

Generated between two bodies in contact with each other by resistance to rubbing between them.

a)

Push or pull

b)

Tension

c)

Elasticity

d)

Friction

137.

Is the force of attraction that the body with mass exerts on another.

a)

Tension

b)

Push or pull

c)

Gravitational or Weight

d)

Normal force

138.
What force holds the planets in motion around the sun?
a)
Magnetic
b)
Electrical
c)
Gravitational
d)
Air Resistance
139.

Rina’s mother asked her to help move some items from the hall closet to the garage. One item she wanted to move was a large box of old school books. Rina tried to lift the box, but could not pick it up. What force was Rina NOT able to overcome?

a)

frictional force

b)

gravitational force

c)

applied force

d)

normal force

140.

Leanna decided to rearrange her bedroom by moving her dresser to the opposite wall. She tried pushing it, but found that the dresser would not move. What force was Leanne NOT able to overcome?

a)

normal force

b)

gravitational force

c)

tension force

d)

frictional force

141.

Look at the illustration below of a block sitting on a table-top. The magnified view illustrates a force that exists between the two objects.

Which type of force is demonstrated in the magnified view?

a)

normal force

b)

applied force

c)

gravitational force

d)

frictional force

142.
Name the missing force....
a)
weight force
b)
normal force
c)
frictional force
d)
tension force
143.
Name the missing force...
a)
tension force
b)
gravitational force
c)
normal force
d)
applied force
144.
Name the missing force...
a)
weight force
b)
normal force
c)
applied force
d)
frictional force
145.
Name the missing force...
a)
tension force
b)
frictional force
c)
normal force
d)
spring force
146.
What type of force?
a)
Magnetic
b)
Gravitational
c)
Applied
d)
Normal
147.
What type of force is holding this balloon to the wall?
a)
Applied
b)
Gravitational
c)
Magnetic
d)

electrostatic

148.
What force ultimately slows the roller coaster to a stop?
a)
Applied
b)
Normal
c)
Friction
d)
Magnetic
149.

A force exerted by a compressed or stretched spring upon any object that is attached to it.

a)

Spring Force

b)

Tension Force

c)

Elastic Force

150.

The repelling or attracting force between a magnet and a ferromagnetic material (like iron).

a)

Magnetic Force

b)

Electrical Force

c)

Gravity

151.

The force that is transmitted through a string, rope, cable or wire when it is pulled tight.

a)

Spring Force

b)

Tension Force

c)

Elastic Force

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