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Worksheets

PH101

Total questions: 177

Worksheet time: 4hrs 2mins

Name
Class
Date
1.
The amount of force pushing on an area is the definition of....
a)
Fluid
b)
Viscosity
c)
Barometer
d)

Pressure

2.
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
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.
Where would you find the largest pressure?
a)
At the bottom of the ocean
b)
At the top of Mt Everest
c)
Close to ground on the Scotch oval
d)
In a rockpool on the Great Barrier Reef
6.
Look at the pressure triangle. How do we calculate the area?
a)
f ÷ a
b)
f x p
c)
p x f
d)
f ÷ p
7.
Look at the pressure triangle. How do we calculate the force?
a)
f ÷ a
b)
f x p
c)
p x a
d)
f ÷ p
8.
Pressure is measured in what units
a)
Newtons
b)
m/s
c)
Pascals
d)
Moles
9.
Pressure is equal to force divided by what
a)
area
b)
mass
c)
time
d)
distance
10.

Pressure can be measured in Pascales (Pa) or Newtons per square metre.
1 Pa = 1N/m2

a)
True
b)
False
11.
The pressure resulting from a force of 50 N exerted over an area of 5 m2 is
a)
10 N
b)
0.1 N
c)
10 N/m2
d)
0.1 Pa
12.
What does pressure measure?
a)
Strength
b)
Force exerted on a given area of surface
13.
What is the equation used to calculate pressure?
a)
pressure= force/mass
b)
pressure =mass/volume
c)
pressure=area/force
d)
pressure=force/area
14.

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

15.

Choose two factors that affect air pressure

a)

mass

b)

volume

c)

area

d)

temperature

16.

Magdeburg Hemisphere, straw, syphon, and vacuum cleaner are some of the applications of .........

a)

buoyant force

b)

liquid pressure

c)

air pressure

d)

density

17.

Atmospheric pressure depends on .......

a)

mass

b)

density

c)

altitude

d)

magnitude

18.

When a diver dives deeper into the ocean, he will experience ...................... liquid pressure

a)

greater

b)

less

c)

no

19.

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

20.

Will air pressure be higher on top of a mountain or on the beach?

a)

beach

b)

mountain

c)

It's always the same

21.

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

22.

The higher the temperature, the .................................. the movement of air particles.

a)

slower

b)

faster

c)

neither

d)

same

23.

When blood pressure is measured, the cuff of the sphygmomanometer is wrapped round the upper arm and must be held at the level of the heart. Why?

a)

Blood pressure depends on the level of the blood.

b)

Blood pressure is normal when the cuff and heart are at the same level.

c)

Blood is able to flow easily to the wrist.

24.

Pressure rxerted by air on the earth's surface

a)

Pressure

b)

Atmospheric pressure

c)

Heat pressure

25.
An object is _____ if its position changes relative to another object.
a)
in motion
b)
at reset
c)
a frame of refence
d)
magical
26.

Any change in the location or position of an object.

a)

Distance

b)

Mass

c)

Motion

d)

Reference Point

27.

Total Distance an object travels divided by the total time traveled.

a)

Motion

b)

Constant Speed

c)

Acceleration

d)

Average Speed

28.

Speed that remains the same or does not change

a)

Distance

b)

Constant Speed

c)

Mass

d)

Acceleration

29.

How far an object travels

a)

speed

b)

mass

c)

distance

d)

acceleration

30.

The distance an object moves over time

a)

mass

b)

distance

c)

speed

d)

acceleration

31.

If a super worm traveled for 1hour at a rate of 5cm/hr, what distance did the super worm travel?

a)

6 cm/hr

b)

5 cm/hr

c)

5 cm

d)

5 hours

32.

If a puppy runs for 50 meters in 10 seconds , what was the puppies speed in meters per second (m/s)

a)

60 m

b)

5 m/s

c)

5 ft/s

d)

5 m

33.
What is a PUSH or PULL of an object?
a)
Motion
b)
Force
c)
Friction
d)
Gravity
34.
If these boys are pulling with the same amount of force.  What will happen?
a)
The boy in blue will win.
b)
They will not move at all.
c)
The boy in red will win.
d)
Both will fall down.
35.
It takes more force to accelerate the iron man on the left than the iron man on the right because the iron man on the left has more mass. This best describes
a)
Newton's first law, the law of inertia
b)
Newton's second law, the law of acceleration
c)
Newton's third law, the law of action reaction 
d)
The law of universal gravitation
36.
What kind(s) of objects have inertia?
a)
all objects with mass
b)
only objects at rest
c)
only objects in motion
d)
only objects whose motion is being changed
37.
What Unit do we Measure Force in? 
a)
Newtons
b)
Joules
c)
grams
d)
pounds
38.
The ____________ acting on an object is equal to the ____________ of that object times its __________.
a)
mass, force, acceleration
b)
acceleration, mass, force
c)
force, acceleration, mass
d)
acceleration, force, mass
39.
Why would one ball travel a greater distance than the other when pushed with the same amount of force?
a)
Different sizes
b)
Different weights
c)
Different masses
d)
Different forces
40.
A book rests on a table.  The force of gravity pulls down on the book with a force of 20 newtons. What prevents the books from accelerating downward at 9.8 m/sec2    
a)
The table presses back up on the book with an equal and opposite force of 20 newtons.
b)
The table presses back up on the book with a force greater than 20 newtons.
c)
The table and the book together are accelerating downwards at  9.8 m/sec2
d)
The inertia of the book holds it up
41.
8 N to the left , and 4 N to the right. Find the net force. Is this balanced 
a)
12 N Right  No
b)
4 N Left  No
c)
12 N Right  Yes
d)
4 N Left  Yes
42.
When a cannon fires a cannonball we observe Newton's third law. Which force is the reaction force?
a)
The cannon moving forward
b)
The cannonball moving forward
c)
The cannon moving backward
d)
The cannonball moving backward
43.
Which one is balanced?
a)
top
b)
bottom
c)
both
d)
neither
44.
What is the magnitude (size) and direction of the net force?
a)
15 N to the left
b)
15 N to the right
c)
1 N to the left
d)
1 N to the right
45.
This person bought coffee and put it on the seat next to them. If they stopped quickly and the coffee spilled which law would that represent?
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
46.

The Law of Inertia

a)

Newtons 1st Law of motion

b)

Newtons 2nd Law of motion

c)

Newtons 3rd Law of motion

47.

What of the following is the best example of kinetic energy?

a)
b)
c)
d)
48.

If Jack is pushing a box 19 Newtons to the right and Jill is pushing the same box 87 Newtons to the left which direction will the box go?

a)

68 Newtons to the left

b)

68 Newtons to the right

c)

69 Newtons to the left

d)

69 Newtons to the right

49.

Lily and Billy are moving houses. Lily is pushing a box 28 Newtons to the right while Billy is pushing the same box 55 Newtons to the right. Which direction is the box moving?

a)

83 newtons to the left

b)

73 newtons to the right

c)

93 newtons to the right

d)

83 newtons to the right

50.

If a baseball and a cannonball are dropped from the same height at the same time, which ball will hit the ground first?

a)

The Cannonball

b)

The Baseball

c)

The Balls lands at the Same Time

d)

The Ball with the Larger Volume

51.

How does Newton’s third law explain how a rocket takes off?

a)

The rocket’s acceleration is positive, while the gasses acceleration is negative but the direction is the same

b)

The rocket is at rest until ignition

c)

The hot gasses move in one direction, while the rocket moves in the opposite direction but with equal force

52.
The equation to calculate momentum is
a)
p=mv
b)
p=1/2mv2
c)
p=mgh
d)
p=mg
53.

The momentum of an object depends upon the object's ___________&_____________.

a)

size and shape

b)

mass and speed

c)

mass and veloctiy

d)

mass and energy

54.
Momentum is a ____________________ quantity
a)
science
b)
scalar
c)
vector
d)
energy
55.
Which of the following has more momentum? 
a)
a moving SUV
b)
a moving semi-truck
c)
more information is needed
56.
In a perfectly inelastic collision, ______ is conserved. 
a)
Momentum only
b)
Kinetic Energy only
c)
Both momentum and kinetic energy
57.
A 50 kg ball rolls down the street at 5 m/s. Calculate the momentum of the ball. 
a)
55 kg*m/s
b)
100 kg*m/s
c)
250 kg*m/s
d)
500 kg*m/s
58.

Two skaters begin at rest. Skater 1 has a smaller mass than Skater 2. After they push off each other,...

a)

Skater 1 experiences a greater change in momentum

b)

Skater 2 experiences a greater change in momentum

c)

Skater 1 has a greater speed than Skater 2

d)

Skater 1 experiences a greater force

59.
The momentum of an object depends upon the object's ___________&_____________.  
a)
size and shape
b)
mass and speed
c)
mass and veloctiy
d)
mass and energy
60.
Determine the momentum of 1000-kg car moving northward at 20 m/s......... 
a)
20000 N
b)
20000 Joules
c)
20000 Kg * m/s
d)
20000 kg * m/s north
61.
A runner has a momentum of 720 kg m/s and is traveling at a velocity of 5 m/s. What is his mass?
a)
14.4 kg
b)
1400 kg
c)
144 kg
d)
360 kg
62.
Determine the momentum of 1000-kg car moving northward at 20 m/s......... 
a)
20000 N
b)
20000 Joules
c)
20000 Kg * m/s
d)
20000 kg * m/s north
63.

In an elastic collision, ______ is conserved.

a)

Momentum only

b)

Kinetic Energy only

c)

Both momentum and energy

64.
When the speed of an object is doubled, its momentum
a)
remains unchanged in accord with the conservation of momentum.
b)
doubles
c)
quadruples
d)
decreases
65.
A 2 kg cart has a momentum of 16 kg m/s. What is its velocity?
a)
8 m/s
b)
32 m/s
c)
0.125 m/s
d)
18 m/s
66.
In any collision (crash) the ______ is ALWAYS constant
a)
Total Momentum
b)
total speed
c)
total Velocity
d)
Energy
67.
The total momentum before a collision is _________ the total momentum after a collision.
a)
equal to 
b)
less than 
c)
more than
d)
It depends on the type of collision
68.
Which of the following has the least amount of momentum?
a)
An ant walking along the ground
b)
An ant at rest
c)
An elephant walking
d)
An elephant running
69.
If two objects have the same mass, then the faster moving object has ____________ momentum.
a)
more 
b)
less
c)
the same
70.
The momentum of an object depends upon the object's ___________&_____________.  
a)
size and shape
b)
mass and speed
c)
mass and veloctiy
d)
mass and energy
71.
Momentum is a ____________________ quantity
a)
science
b)
scalar
c)
vector
d)
energy
72.
The impulse is ______ the change in momentum
a)
Greater than
b)
Equal to
c)
less than
d)
always double
73.

Which has more momentum: a car stopped at a red light or a bike moving at 15 m/s?

a)

car

b)

bike

c)

they are equal

d)

cannot determine using the info provided

74.
Determine the momentum of 1000-kg car moving southward at 20 m/s......... 
a)
20000 N
b)
20000 Joules
c)
20000 Kg * m/s south
d)
10000 kg * m/s south
75.
A 2.5 kg ball moving at 5 m/s collides with a 2.5 kg stationary ball in a perfectly elastic collision.  What is the velocity of the second ball after the collision? 
a)
5 m/s
b)
2.5 m/s
c)
10 m/s
d)
7.5 m/s
76.
A 9300 kg railroad car traveling at a velocity of 5 m/s strikes a second boxcar that weighs 5000 kg at rest. At what speed will the second boxcar move?
a)
18.6 m/s
b)
9.3 m/s
c)
7.5 m/s
d)
1.86 m/s
77.
A boy kicks a football with a force of 20 N, the time the force acts for is 0.3 s.
Calculate the impulse on the ball.
a)
1 N*s
b)
6 N*s
c)
33.3 N*s 
d)
None of these
78.

A 5 N force is applied to a 3 kg ball to change its velocity from +9 m/s to +3 m/s. The impulse on the ball is ______ N s.

a)

-2.5

b)

-10

c)

-18

d)

-45

79.
What does this measure?
a)
mass
b)
volume
c)
distance
d)
weight
80.
Convert 109 m to ____ mm
a)
10900 mm
b)
1.09 mm
c)
109000 mm
d)
0.0109 mm
81.

Converting from km to m, you what?

a)

Multiply by 1000

b)

Multiply by 10

c)

Divide by 1000

82.

The base unit of mass

a)

meter

b)

kilograms

c)

pounds

d)

liter

83.

The base unit of time

a)

meter

b)

kilograms

c)

pounds

d)

seconds

84.

The base unit of length

a)

meter

b)

kilograms

c)

pounds

d)

seconds

85.

The base unit of temperature

a)

mass

b)

kilograms

c)

Kelvin

d)

seconds

86.

What is the meaning of the prefix kilo-

a)

10

b)

1000

c)

0.0001

d)

100

87.

What is the meaning of the prefix centi-

a)

10

b)

0.1

c)

0.001

d)

0.01

88.

Find the equivalent

539mm-->m

a)

0.00539m

b)

0.539m

c)

53.9mm

d)

5.39m

89.

Find the equivalent

0.539m --> cm

a)

53.9

b)

0.539cm

c)

53.9cm

d)

53.9m

90.

Units of measurement for area. S____ M_____

(a)  

91.

Which unit(s) can be used to measure volume?


Check all that apply.

a)

kg

b)

cm3

c)

mL

d)

K

e)

L

92.

Sally wants to find the volume of a marble. What instrument should she use to determine this volume?

a)

Metric ruler

b)

Digital Scale

c)

Graduated Cylinder

d)

Thermometer

93.

On a trip to France, David eats some bad escargot and gets food poisoning. He visits the emergency room and the nurse takes his weight. What units did the nurse most likely use to record David's weight?

a)

grams

b)

kilograms

c)

newtons

d)

pounds

94.

How many centimeters are there in one meter?

a)

1

b)

10

c)

100

d)

1,000

95.

The prefixes assigned to units in the SI System are based on factors of...

(a)  

96.

Jimmy wants to use the water displacement method to find the volume of a small rock. He pours 10 mL of water into a graduated cylinder, then drops in the rock. How will Jimmy be able to determine the rock's volume?

a)

The volume of the rock will equal the initial volume of the water in the graduated cylinder.

b)

The volume of the rock will equal the final volume of the water in the graduated cylinder.

c)

The volume of the rock will equal the difference between the initial and final volumes of the water in the graduated cylinder.

d)

Jimmy will not be able to determine the rock's volume using this method.

97.

The SI unit for time is the...

(a)  

98.

Water boils at a temperature of 100 °C. Use the formula below to convert this temperature to Kelvin.


K = 273 + °C

(a)  

99.

Dry ice is solid carbon dioxide (CO2). A sample of dry ice has a volume 100 cm3. This sample is then placed in a sealed container and allowed to sublime, or change into gaseous form. If all of the original sample becomes a gas, what would its volume be in mL?

a)

0

b)

10

c)

100

d)

1,000

100.

When comparing the volumes of liquids and solids,


1 mL = (a)   cm3


?

101.

True or False: A Derived Unit is a combination of fundamental units.

a)

True

b)

False

102.

Convert the following:

0.025 km = (a)   cm

103.

Convert the following:

1000 mg = (a)   g

104.

Convert the following:

198 g = (a)   kg

105.
A car travels 90 meters due north in 15 seconds. Then the car turns around and travels 40 meters due south.  What is the magnitude and direction  of the car's resultant displacement?  
a)
40 metres, South
b)
50 metres, South
c)
50 metres, North
d)
40 metres, North 
106.
Which statement describes a vector?
a)
It has magnitude but no direction
b)
It has direction but no magnitude
c)
It has both direction and magnitude
d)
It has constant magnitude but no
 direction
107.
Is this a scalar quantity or a vector quantity?
Wind blowing at 20 knots
a)
Scalar
b)
Vector
108.
Is this a scalar quantity or a vector quantity?
A deer running 15 meters per second due west
a)
Scalar
b)
Vector
109.
If a boomerang is thrown 20 m in a straight line and returns exactly to the spot it was thrown what is its displacement?
a)
20m
b)
40m
c)
0m
d)
-20m
110.
If a boomerang is thrown 20 m in a straight line and returns exactly to the spot it was thrown what is its displacement?
a)
20m
b)
40m
c)
0m
d)
-20m
111.
Which of these is not a vector quantity? 
a)
displacement 
b)
time
c)
velocity 
d)
acceleration
112.
Which of the following quantities are vectors?
a)
speed, velocity, acceleration
b)
velocity, acceleration, force
c)
force, acceleration, mass
d)
length, mass, time
113.
The _______ of two or more vectors is the sum of the vectors.
a)
components
b)
scalar
c)
resultant
d)
magnitude
114.
What is the net force?
100 N        230 N
<------        --------->
a)
30 N to the right
b)
230 N to the right
c)
130 N to the right
d)
This is a balanced force
115.
What is the SI unit of measurement for force?
a)
lbf
b)
Kilograms
c)
Newtons
d)
m/sec^2
116.
An airplane traveling north at 220 meters per second encounters a 50.0-meters-per-second crosswind from west to east. 
a)
170 m/s
b)
214 m/s
c)
226 m/s
d)
270 m/s
117.
What is the magnitude of the resultant?
a)
900 Newtons
b)
0 Newtons
c)
450 Newtons
d)
636.40 Newtons
118.
What is the magnitude of the resultant?
a)
17.03 m
b)
70 m
c)
30 m
d)
55.60 m
119.
Ms. HK and Ms. Walton were both pushing a car south. Ms. HK pushed with 400 N and Ms. Walton pushed with 500 N. What was their resultant?
a)
640.31 N south
b)
100 N south
c)
900 N south
d)
410000 N south
120.
An object with which of the following densities will float on water?
a)
0.7 g/cm3
b)
1.2 g/cm3
c)
3.5 g/cm3
d)
11.4 g/cm3
121.
Mercury is a metal that is liquid at room temperature and has a density of 13.5 g/cm3.  Which of these metals would sink below the mercury if dropped into a container of mercury?
a)
gold (density=19.3 g/cm3)
b)
lead (density=11.4 g/cm3)
c)
iron (density=7.9g/cm3)
d)
aluminum (density=2.7g/cm3)
122.
What is the density of water?
a)
0 g/ml
b)
1 g/ml
c)
10 g/ml
d)
100 g/ml
123.
Why do some substances float on water?
a)
they are warmer than water
b)
they are cooler than water
c)
they are more dense than water
d)
they are less dense than water
124.
What is the volume of Object X?
a)
10.0 cm3
b)
15.0 cm3
c)
20.0 cm3
d)
25.0 cm3
125.
Which liquid is the least dense?
a)
oil
b)
water
c)
syrup 
d)
plastic bottle
126.
What property do these tools measure?
a)
volume
b)
mass
c)
length
d)
temperature
127.
If the mass of a cup of water is 250 grams and the mass of the empty cup is 30 grams.  What is the mass of the water?
a)
220 grams
b)
280 grams
c)
30 grams
d)
250 grams
128.
The density of this material is 2 g/cm3.
There are 24 cm3  Find the total mass.
a)
12 grams
b)
48 grams
c)
12 g/cm3
d)
48 g/cm3
129.
Find the volume of this piece of brass.  
a)
50 g
b)
10 cm
c)
6 cm3
d)
12 cm3
130.
Find the density of a 2 cm x 2 cm x 2 cm cube with a mass of 64 g.
a)
6 cm3
b)
12 g/cm3
c)
128 g/cm3
d)
8  g/cm3
131.
A diamond has a mass of 1.2 g.  If diamond has a density of 3.51 g/mL, what is the volume of the diamond.
a)
0.34 mL
b)
2.9 g/mL
c)
2.3 mL
d)
4.2 mL
132.
The density of gold is 19.32 g/mL.  The king's gold ring displaces 0.4 mL when placed in water.  What is the mass of the ring?
a)
48.3 g
b)
7.7 g
c)
0.02 g
d)
19.28 g
133.
What is the net force?
a)
5 N
b)
45 N to the left
c)
5 N to the right
d)
45 N to the right
134.
What is a force?
a)
the PUSH or PULL on an object 
b)
The MOTION an object creates
c)
The objects HITTING one another
d)
Going REALLY FAST
135.
What is the net force?
a)
17 N Right
b)
3 N Right
c)
3 N Left
d)
17 N Left
136.
Calculate the net force shown in the  diagram?
a)
41 N
b)
25 N
c)
16 N
d)
9 N
137.

If the boy is pulling with a force of 10 N and the girl is pushing with a force 20 N, what is the net force on the box?

a)

10 N

b)

20 N

c)

30 N

d)

0 N

138.
A roller coasters accelerates from an initial velocity of of 6.0 m/s to a final velocity of 70 m/s over 4 seconds.  What's the acceleration?
a)
24 m/s2
b)
18 m/s2
c)
16 m/s2
d)
16 m/s
139.
A car starts from rest at a stop light and reaches 20 m/s in 3.5 s. Determine the acceleration of the car.
a)
2.2m/s2
b)
7.0m/s2
c)
5.7m/s2
d)
70m/s2
140.
Acceleration is defined as the CHANGE in 
a)
time it takes for one place to move to another place. 
b)
velocity of an object.
c)
distance divided by the time interval 
d)
velocity divided by the time interval 
141.
Acceleration only takes place when things speed up. 
a)
True
b)
False
142.
You are walking in a straight line at a consistent speed. Do you have acceleration? 
a)
no
b)
yes 
143.
As you walk you make a right turn. Do you have acceleration? 
a)
yes 
b)
no
144.
A drag racer accelerated from 0 m/s to 200 m/s in 5 s.  What was the acceleration?
a)
0 m/s
b)
40 m/s2
c)
-40 m/s2
d)
40 m/s
145.
If a car going 30 m/s approaches a traffic jam and the driver hits the brakes, how long will it take for them to slow to a stop with at a rate of -6.25m/s2? 
Which equation will help you solve this problem?
a)
Vf = (a•t) + vi
b)
Vi = vf- (a•t)
c)
a = (vf-vi)/t
d)
t = (vf-vi)/a
146.
A dog runs with an initial speed of 7.5 m/s on a waxed floor.  It slides to a stop in 15 seconds.  What is the acceleration?
a)
-7.5 m/s
b)
-7.5 m/s2
c)
-0.5 m/s2
d)
7.5 mi//hr
147.
Why does a car accelerate as it round a corner at a constant speed?
a)
Its direction changes
b)
It doesn't
c)
It slows down
d)
Its speeds up  
148.
The metric unit for acceleration is ______.
a)
m
b)
m/s
c)
m/s2
d)
s
149.
A golf ball rolls up a hill towards the hole. If the golf ball starts with a speed of 2 m/s and slows at a constant rate of 0.5 m/s2, what is its velocity after 2 s?
a)
0 m/s
b)
0.5 m/s
c)
1 m/s
d)
1.5 m/s
150.
The number of cycles that are completed per second is called the _ and is measured in _.
a)
frequency, Hertz
b)
wavelength, meters
c)
amplitude, meters
d)
period, seconds
151.
The time that it takes to complete one wave cycle is called the...
a)
frequency
b)
period
c)
amplitude
d)
wavelength
152.
What is the period of a 3.5 m-long pendulum on Earth?
a)
1.4 s
b)
3.8 s
c)
3.2 s
d)
4.6 s
153.

A pendulum has a period of 4 seconds, how many cycles will it undergo in 52 seconds?

a)

208 cycles

b)

104 cycles

c)

13 cycles

d)

42.0 cycles

154.

Complete - The longer the string, the ________ the Period of the pendulum.

a)

greater

b)

lesser

155.

How does MASS affect the period of the pendulum?

a)

No effect

b)

More massive, shorter period

c)

More massive, longer period

156.

Calculate the weight of a 10 kg pot roast

a)

10 kg

b)

10 N

c)

98 kg

d)

98 N

157.

Which of the following measures the amount of gravitational force?

a)

Mass

b)

Time

c)

Weight

d)

Dreads

158.

Calculate the weight of a 32 kg dog on the moon. (pick the best answer)

a)

320 kg

b)

320 N

c)

3 N

d)

3 kg

159.

The mass of Joe on the earth is 100 kg. The g on the moon is 1.35 m/s2. What is Joe's weight on the moon?

a)

135 N

b)

135 kg

c)

83.3 kg

d)

83.3 N

160.

Where is the mass of the 5 kg cat greater?

a)

Moon

b)

earth

c)

the mass is equal on the earth and moon

d)

not enough information

161.

My weight on earth is 1960 N. My mass on the moon is....

a)

1960 kg

b)

200 kg

c)

200 N

d)

Not enough information

162.

My weight on earth is 1960 N. My mass on the moon is....

a)

1960 kg

b)

200 kg

c)

200 N

d)

Not enough information

163.

A semiconductor has generally ……………… valence electrons.

a)

2

b)

3

c)

6

d)

4

164.

Which of the following is a pentavalent impuity added while forming an extrinsic semiconductor ?

a)

Boron

b)

Arsenic

c)

Indium

d)

Gallium

165.

Doping of Semiconductors

a)

materials which can conduct electricity better than insulator, but not as well as conductors.

b)

The process of adding of a certain amount of specific impurities atoms in the pure semiconductor.

c)

when 4 electrons in outermost orbit.

166.

The minority carriers in P-type silicon are called _________________

a)

Neutron

b)

Proton

c)

Electron

d)

Hole

167.

During formation of p-n junction

a)

an electron diffuses from n to p side

b)

a hole diffuses from p to n side

c)

a hole diffuses from n to p side

d)

an electron diffuses from p to n side

168.

Which is not one of the properties of semiconductor?

a)

4 electrons in outermost orbit, in covalent bonding.

b)

atoms vibrate causes electron to break free from the bonds.

c)

Electron free leaves hole.

d)

Semiconductor has 2 types of charge carriers.

e)

all of the above are the properties of it

169.

Which among these is NOT a semiconductor

a)

Germanium

b)

Silicon

c)

Gallium Arsenide

d)

Titanium

170.

Electrons and holes are equal in magnitude but opposite in polarity

a)

True

b)

False

171.

An n type semiconductor is negatively charged

a)

True

b)

False

172.

Who contribute to the current in a semiconductor

a)

electrons only

b)

holes only

c)

negative ions

d)

both electrons and holes

173.

When a pentavalent impurity is added to a pure semiconductor, it becomes ………

a)

An insulator

b)

An intrinsic semiconductor

c)

p-type semiconductor

d)

n-type semiconductor

174.

Addition of trivalent impurity to a semiconductor creates many ……..

a)

Holes

b)

Free electrons

c)

Valence electrons

d)

Bound electrons

175.

At room temperature, an intrinsic semiconductor has ……….

a)

Many holes only

b)

A few free electrons and holes

c)

Many free electrons only

d)

No holes or free electrons

176.

What is the most common semiconductor material used for producing integrated circuits

a)

Quartz

b)

Silicon

c)

Diamond

d)

Tantalum

177.

How is conduction increased in an p-type semiconductor?

a)

by increased applied electrical field

b)

by decreased applied electrical field

c)

by the availability of extra holes

d)

by the availability of donor electrons