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G10.PHY102

Total questions: 120

Worksheet time: 2hrs 0mins

Name
Class
Date
1.

What is the resultant of these two vectors?

a)

+17 m

b)

+3 m

c)

-17 m

d)

-3 m

2.

What is the magnitude of the resultant vector, r?

a)

3

b)

4

c)

5

d)

7

3.

Which of the following is a vector? (Select all that apply.)

a)

Acceleration

b)

Velocity

c)

Speed

d)

Distance

4.

Which of the following is a scalar? (Select all that apply.)

a)

Acceleration

b)

Speed

c)

Displacement

d)

Distance

5.

A vector includes ______ and ________.

a)

direction, magnitude

b)

magnitude, units

c)

direction, units

d)

scalars, scalars

6.

Which of the following describes the vector above?

a)

45 cm

b)

45 cm at 30 degrees North of East

c)

45 cm at 30 degrees East of North

d)

45 cm North East

7.

Describe the direction of the vector above.

a)

30 degrees

b)

30 degrees North East

c)

30 degrees North of East

d)

30 degrees East of North

8.

If the force P is 100 N with an angle of 30 degrees north of east, then the magnitude of force P along vertical is _____.

a)

A. 50.0 N

b)

B. 57.7 N

c)

C. 86.6 N

d)

D. 88.9 N

9.

What is the x component of the vector?

a)

14cos(30)

b)

14sin(30)

c)

14tan(30)

d)

14tan-1(30)

10.
What is the y component of the vector?
a)
14sin(30)
b)
-14sin(30)
c)
14cos(30)
d)
-14cos(30)
11.
What is the x component of the vector given in the diagram?
a)
77N
b)
92N
c)
120N
d)
60N
12.

If vector A has an x component of 12 units and a y component of 7 units, what is the magnitude of vector A?

a)

19 units

b)

13 units

c)

14 units

d)

193 units

13.

A resultant vector is

a)

equal to the sum of one vector.

b)

equal to the sum of two or more vectors.

c)

equal to the difference of one vector.

14.

If two vectors to be added are at right angles, you will need to....

a)

Multiply

b)

Divide

c)

Pythagorean Theorem

d)

Use trigonometry

15.

Check out this super cool vector (☞ﾟヮﾟ)☞

Calculate the horizontal component of the velocity

a)

69 m/s

b)

20 m/s

c)

35 m/s

d)

23 m/s

16.

Aww snap, it's another vector (☞ﾟヮﾟ)☞

Find the vertical component of its velocity

a)

52 m/s

b)

30 m/s

c)

35 m/s

d)

9 m/s

17.
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 
18.
What is the x component of the vector given in the diagram?
a)
77N
b)
92N
c)
120N
d)
60N
19.
What is the y component of the vector given in the diagram?
a)
77N
b)
92N
c)
120N
d)
60N
20.
Find h
a)
35.60
b)
35.00
c)
35.71
d)
61.03
21.
Friction is a force that acts in an ___________ direction of movement.
a)
similar
b)
opposite
c)
parallel
d)
west
22.
How can friction be reduced?
a)
reduce the force acting between the 2 surfaces
b)
reduce the roughness of the 2 surfaces coming in contact
c)
use wax, grease or oil
d)
all of the above are ways of reducing friction
23.
A type of friction that occurs when air pushes against a moving object causing it to decelerate.
a)
surface area
b)
air resistance
c)
velocity
d)
gravity 
24.
Which of the following is an example of friction that is helpful?
a)
Brakes used on a bike
b)
Tires from a car on the road
c)
Tread on the bottom of your shoes
d)
All are examples that are helpful
25.
Which of the following is an example of friction that is harmful?
a)
Pencil marking on paper
b)
Engine parts wearing out
c)
sand placed on ice in the winter
d)
Using an eraser to erase marks
26.
How would the absence of friction affect a marble traveling on a long, straight path?
a)
The marble’s speed would decrease.
b)
The marble’s speed would increase.
c)
The marble would stop immediately. 
d)
The marble would remain at constant speed.
27.
Rougher surfaces have ...
a)
greater friction
b)
less friction
c)
the same level of friction
28.
Which would NOT be a way of reducing friction?
a)
making the surfaces smoother
b)
using lubricants such as waxes, oils, or grease
c)
changing from sliding friction to rolling friction using ball bearings
d)
Using kitty litter on snow and ice to help your car gain traction
29.
What does friction produce?
a)
light
b)
sound
c)
heat
d)
gravity
30.

Where will be the centre of mass of a uniform rod lies ?

a)

At its end

b)

At its middle point

c)

At its centre of its cross sectional area

d)

Depends upon its material

31.

What is the average speed of an object that travels 6.00 meters north in 2.00 seconds and then travels 3.00 meters east in 1.00 second?

a)

9.00 m/s

b)

4.24 m/s

c)

3.00 m/s

d)

0.333 m/s

32.

The speedometer in a car does not measure the car’s velocity because velocity is a

a)

vector quantity and has a direction associated with it

b)

vector quantity and does not have a direction associated with it

c)

scalar quantity and has a direction associated with it

d)

scalar quantity and does not have a direction associated with it

33.

A toy car moves 8 m in 4 s at the constant velocity. What is the car’s velocity?

a)

1 m/s

b)

2 m/s

c)

3 m/s

d)

4 m/s

34.

A train moves at a constant velocity of 50 km/h. How far will it move in 0.5 h?

a)

10 km

b)

20 km

c)

25 km

d)

45 km

35.

Which of the following is a vector quantity?

a)

time

b)

velocity

c)

speed

d)

distance

36.

A car at accelerates from 0 m/s to 25 m/s in 5 seconds. What is the average acceleration of the car?

a)

30 m/s2

b)

50 m/s2

c)

125 m/s2

d)

5 m/s2

37.

A car at accelerates from 0 m/s to 25 m/s in 5 seconds. What is the average acceleration of the car?

a)

30 m/s2

b)

50 m/s2

c)

125 m/s2

d)

5 m/s2

38.

What is the unit of measurement used in physics for speed?

a)

seconds

b)

seconds per meter

c)

meters

d)

meters per second

39.

Velocity is a vector measurement because it has both a magnitude and a ________.

a)

Time

b)

Distance

c)

Direction

d)

Temperature

40.

If the velocity decreases, the acceleration is-----------.

a)

zero

b)

positive

c)

negative

41.

The area under the v-t graph gives-----------.

a)

velocity

b)

displacement

c)

acceleration

42.

The slope of v-t graph gives-----------.

a)

velocity

b)

displacement

c)

acceleration

43.

Speed and velocity are the same quantities.

a)

True

b)

False

44.

During which interval is the object speeding up?

a)

A to B

b)

B to C

c)

D to E

d)

E to F

45.
What does this graph represent?
a)
Constant Speed
b)
Acceleration
c)
Not moving
46.
How long did it take this object to travel 10 m?
a)
0 s
b)
10 s
c)
15 s
d)
20 s
47.
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
48.
At 60 seconds, how far had this object traveled? 
a)
0 m
b)
10 m
c)
20 m
d)
40 m
49.
What does this graph represent?
a)
Constant speed
b)
Acceleration
c)
Not moving
50.

A student walks 2.0 km in a time of 30 minutes. The student then stop for 15 minutes to eat a snack then travels 1.0 km in 15 minutes.

a)
b)
c)
d)
51.
This graph demonstrates an object that is -
a)
At a constant speed
b)
Increasing speed
c)
Decreasing speed
d)
Stationary
52.

What is happening between 2 and 3 seconds?

a)

The object is not moving.

b)

The object is not accelerating.

c)

The object is slowing down.

d)

The object is speeding up.

53.
This graph demonstrates an object that is -
a)
At a constant speed
b)
Increasing speed
c)
Decreasing speed
d)
Stationary
54.
This graph demonstrates an object that is -
a)
At a constant speed
b)
Increasing speed
c)
Decreasing speed
d)
Stationary
55.
This is a velocity-time graph.  What is the object doing in segment B?
a)
Positive acceleration
b)
Negative acceleration
c)
Constant Velocity
d)
Not moving
56.
Which graph is showing acceleration (getting faster)
a)
D
b)
E
c)
both D and E
d)
neither D or E
57.

During which segment did the car come to a complete stop?

a)

Segment A to B

b)

Segment B to C

c)

Segment C to D

d)

Segment D to E

58.

During which segment did the car travel back toward its starting position?

a)

Segment A to B

b)

Segment B to C

c)

Segment C to D

d)

Segment D to E

59.

During which segment did the car travel the fastest?

a)

Segment A to B

b)

Segment B to C

c)

Segment C to D

d)

Segment D to E

60.

On this position vs time graph, what is the velocity?

a)

40 m/s

b)

8 m/s

c)

5 m/s

d)

0 m/s

61.

On this position vs time graph, what is the velocity from 15 to 40 seconds?

a)

-4 m/s

b)

-10 m/s

c)

-25 m/s

d)

-100 m/s

62.

What is the velocity at 12.5 seconds?

a)

0 m/s

b)

2 m/s

c)

10 m/s

d)

20 m/s

63.

What is the acceleration during interval A?

a)

0 m/s/s

b)

2 m/s/s

c)

10 m/s/s

d)

20 m/s/s

64.

What is the acceleration during interval B?

a)

0 m/s/s

b)

2 m/s/s

c)

10 m/s/s

d)

20 m/s/s

65.

What is the displacement from 0-10 seconds?

a)

10 m

b)

10 m

c)

100 m

d)

200 m

66.

What is the displacement from 15-30 seconds?

a)

150 m

b)

-150 m

67.
Which graph represents zero acceleration (constant velocity)?
a)
A
b)
B
c)
C
d)
D
68.
Which graph represents the greatest acceleration?
a)
A
b)
B
c)
C
d)
D
69.

What is occurring on this graph?

a)

Negative acceleration

b)

moving at a constant speed in the positive direction

c)

positive acceleration

d)

negative net force

70.

Calculate the displacement traveled in section C. Hint: Remember the area under a v-t graph = displacement and you will need to use TWO shapes!

a)

200 m

b)

100 m

c)

50 m

d)

400 m

71.

Calculate the displacement traveled in section B. Hint: Remember the area under a v-t graph = displacement!

a)

150 m

b)

50 m

c)

100 m

d)

200 m

72.

Find the velocity from the given graph.

a)

-2m/s

b)

−12  ms-\frac{1}{2}\ \ \frac{m}{s}

c)

2m/s

73.

Find the velocity from the given graph.

a)

2 m/s

b)

12\frac{1}{2} m/s

c)

100 m/s

d)

-2m/s

74.
According to the graph how fast does the person travel in the first 5 seconds?
a)
2 m/s
b)
10 m/s
c)
12.5 m/s
d)
1 m/s
75.
Which runner complete the 100 meter race in the least amount of time?
a)
Albert
b)
Bob
c)
Charlie
76.
Alan travels 100 km in 5hrs. Find his average speed in km/h
a)
5km/hr
b)
10km/hr
c)
50km/hr
d)
20km/hr
77.
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
78.

The graph represents the motion of a car over 10 seconds. What is the average speed of the car during the first 4 seconds?

a)

.4 m/s

b)

2.5 m/s

c)

10 m/s

d)

40 m/s

79.

What does the solid line on this graph represent?

a)

Constant speed

b)

Acceleration

c)

Not moving

d)

deceleration

80.
What is the speed of this object at 3 seconds?
a)
5 m/s
b)
45 m/s
c)
5 s/m
d)
45 s/m
81.
 Work done = Force x _________
a)
a. distance
b)
b. acceleration
c)
c. velocity
d)
d. speed
82.

A man pushes a car with a force of 20N. He pushes it 5m. How much work is done?

a)

4J

b)

100J

c)

50J

d)

150J

83.

A ball is thrown 25m with a force of 8N. What is the work done?

a)

200J

b)

175J

c)

250J

d)

225J

84.

What is the unit of work?

a)

Newton

b)

Joule

c)

Watt

d)

meter

85.

if you push a cart with a force of 60 N for 2 m... how much work have you done

a)

120 J

b)

30 J

c)

120 N

d)

30 N

86.
Which of the following is the best example of work being done. 
a)
doing homework
b)
lifting a box
c)
pushing a stationary box
d)
holding a box
87.

Big H jumps over a fence to get a football. He uses 2000J of energy, and a force of 100N. How high was the fence?

a)

2m

b)

20m

c)

0.2m

d)

3m

88.

work is done when

a)

the object you apply a force on moves

b)

any force is applied to an object, regardless if it moves or not

c)

the force is zero

d)

the force and direction of motion are perpendicular

89.

Which form of energy is involved in a pencil falling from a desk?

a)

kinetic

b)

nonmechanical

c)

gravitational potential

d)

elastic potential

90.

An object in motion

a)

potential energy

b)

elastic potential energy

c)

nonmechanical energy

d)

kinetic enerty

91.

Energy stored due to the interactions between objects

a)

potential

b)

positional

c)

total

d)

kinetic

92.

What is the rate at which energy is converted?

a)

potential energy

b)

kinetic energy

c)

mechanical energy

d)

power

93.

The ability to do work is called

a)

energy

b)

force

c)

power

d)

machine

94.

Which picture shows more power?

a)
b)
95.
A weightlifter lifts two 300 newton weights 1.5 meters off the ground. How much work has he done?
a)
600 J 
b)
660 J
c)
900 J 
d)
1200 J 
96.
You do 90 joules of work in 30 seconds. How much power have you generated?
a)
30 watts
b)
3 watts
c)
120 watts
d)
270 watts
97.

You move a 0.8 kg object five meters in 4 seconds. How much power have you generated?

a)

160 watts

b)

10 watts

c)

6.4 watts

d)

17 watts

98.

What is the relationship between Power and Work?

a)

Power is the rate which Work is done

b)

Work is not related to Power

c)

Power is the result of work times the time it takes to complete it

99.

Brutus is a weightlifter. He completes a lift in 3.5 s, what is the power of Brutus, if he performed 660.0J of work?

a)

2310 J

b)

He performs no work

c)

189 J

100.
What energy transformations take place when a battery-operated radio is in use?
a)
Electrical to chemical to light
b)
Sound to chemical to mechanical
c)
Chemical to electrical to sound
d)
Light to electrical to thermal
101.
Which of the following energy transformations occur when a lamp that is plugged into a wall socket is functioning correctly?
a)
Chemical to light
b)
Electrical to chemical
c)
Electrical to light
d)
Chemical to electrical
102.

The law of conservation states that

a)

energy can be created and destroyed, and cannot change form

b)

energy does not exist

c)

energy cannot be created or destroyed, but can be changed from one form to another

d)

energy moves in different ways

103.

Select three example of energy from this list

a)

Kinetic

b)

Sound

c)

Rain

d)

Water

e)

Nuclear

104.

What energy is wasted ion this diagram?

a)

electrical

b)

light

c)

heat

105.

Is this light bulb efficient?

a)

I don't know

b)

Yes it is

c)

No it isn't

106.

Select an example of non renewable energy

a)

Coal

b)

Wind

c)

Geothermal

d)

Solar

107.

Where will be the centre of gravity of a uniform rod lies ?

a)

At its end

b)

At its middle point

c)

At its centre of its cross sectional area

d)

Depends upon its material

108.

Where do you hang the plumb line when determining the CG?

a)

It doesn't matter, because it always goes through the CG

b)

Only from the corners

c)

From the point where you are suspending the object

d)

At the right angle

109.

Where does the center of gravity of a circle lie?

a)

At its centre

b)

Anywhere on its radius

c)

Anywhere on its circumference

d)

Anywhere on its diameter

110.

What is one way you might increase the stability of an object?

a)

Lower the center of gravity

b)

Raise the center of gravity

c)

Increase the height of the object

d)

Shorten the base of the object

111.

If we suspend lamina at different positions, its center of gravity will still lie along the

a)

Plumb line

b)

Line of force

c)

Line of weight

d)

Gravity line

112.

What is the Unit for Torque

a)

Nm

b)

N

c)

W

d)

J

113.

A wrench is used to tighten a nut. A 15N perpendicular force is applied 50cm away from the axis of rotation, and moves a distance of 10 cm as it turns. What is the torque applied to the wrench?

a)

7.5 Nm

b)

1.5 Nm

c)

750 Nm

d)

150 Nm

114.
A state of equilibrium is also seen below. Each of the cars weighs the same  9800 N. Despite the fact that there is only one car on the left-hand side that is 9 m from the fulcrum, the torques balance because, the car on the left-hand side, is ____meters from the fulcrum, compared to the cars on the right-hand side.
a)
4.5 m
b)
3 m
c)
1 m
d)
2 m
115.

What is the anti-clockwise torque (moment)acting on this crane?

a)

80,000Nm

b)

100,000Nm

c)

120,000Nm

d)

140,000Nm

116.
A wrench is used to tighten a nut. A 15N perpendicular force is applied 50cm away from the axis of rotation, and moves a distance of 10 cm as it turns. What is the torque applied to the wrench?
a)
7.5 Nm
b)
1.5 Nm
c)
750 Nm
d)
150 Nm
117.
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
118.
Does a bridge anchored resting on two pillars have any torque?
a)
No, it isn't moving
b)
Yes, but it is at equilibrium
c)
Yes, but it will soon break because of the torque
d)
No, Bridges can't have torque
119.
If the torque required to loosen a nut on the wheel of a car has a magnitude of 60.0 N• m, what minimum perpendicular force must be exerted by a mechanic at the end of a 45.0 cm wrench to loosen the nut?
a)
.666 Nm
b)
 133.3 N
c)
66.7 N
d)
13.3 Nm
120.

A state of equilibrium is also seen below. Each of the cars weighs the same 9800 N. Despite the fact that there is only one car on the left-hand side that is 9 m from the fulcrum, the torques balance because, the cars on the right-hand side, are ____meters from the fulcrum.

a)

4.5 m

b)

3 m

c)

1 m

d)

2 m

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