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Worksheets

3rd Quarterly

Total questions: 90

Worksheet time: 2hrs 59mins

Name
Class
Date
1.
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
2.
What is the net force?
a)
17 N Right
b)
3 N Right
c)
3 N Left
d)
17 N Left
3.

Pilot Smith has a ground speed of 90 miles/hr. How long will it take to fly 300 miles at that speed?

a)

0.3 hr

b)

1.5 hr

c)

3.33 hr

d)

27,000 hr

4.

Which of the following correctly shows a vector quantity?

a)

5 km/s S

b)

5 km/s

c)

5 kg

d)

-5 kg

5.

Displacement is a change in…

a)

Speed

b)

Distance

c)

Position

d)

Velocity

6.

In which section is the object accelerating?

a)

A

b)

B

c)

D

d)

E

7.

In which section does the object have a constant positive speed?

a)

A

b)

B

c)

C

d)

D

8.

In which section is the object stationary?

a)

A

b)

B

c)

C

d)

E

9.

During which interval is the object slowing down?

a)

0-10 min

b)

10-15 min

c)

15-30 min

d)

30-40 min

10.

During which interval does the object have a constant positive speed?

a)

0-10 min

b)

10-15 min

c)

15-30 min

d)

40-55 min

11.

At what time is the object stationary?

a)

10 min

b)

20 min

c)

30 min

d)

40 min

12.
What happens at 4 seconds?
a)
The object changes direction.
b)
The object is at the starting point.
13.
Which lines show slowing down during the whole time?
a)
orange and green
b)
blue and pink
c)
just orange
d)
just green
14.
Which lines show positive velocity and negative acceleration for at least some part of the time?
a)
pink, blue and red
b)
green and orange
c)
only orange
d)
only pink
15.
Which lines show a change in direction?
a)
Green only
b)
Blue and red
c)
orange and pink
d)
green and pink
16.
What is this graph showing?
a)
Constant Speed
b)
object is speeding up
c)
object is slowing down
d)
No motion
17.

Define acceleration

a)

ratio of velocity to time

b)

rate of change in displacement

c)

rate of change in velocity

d)

ratio of force to mass

18.

Which statement is false for the projectile when it is at the highest point Q of its path?

a)

The vertical component of the projectile’s velocity is zero.

b)

The momentum of the projectile is horizontal.

c)

The kinetic energy of the projectile is minimum.

d)

The vertical acceleration is zero.

19.
What is speed?
a)
how far you go
b)
how much distance is covered over a period of time
c)
how fast you accelerate
d)
the change in the location of a object
20.
A change in velocity over time is known as:
a)
acceleration
b)
constant speed
c)
average speed
d)
displacement
21.
The correct equation to calculate speed is
a)
distance/time
b)
time/distance
c)
distance x time
d)
distance/time2
22.
A distance vs. time graph shows an object's
a)
frame of reference
b)
speed
c)
acceleration
d)
favorite food
23.
Velocity is both ____ and _____. 
a)
speed , direction 
b)
direction, mass
c)
volume, density 
d)
direction, magnitude 
24.
The speedometer on your car tells you
a)
average velocity
b)
instantaneous velocity
c)
average speed
d)
instantaneous speed
25.

How much time would it take for the sound of thunder to travel 8 kilometres if sound travels a speed of 330 metres per second?

a)

0.0242 s

b)

0.0413 s

c)

24.2 s

d)

41.3 s

26.
A car accelerates from 0-72 in 6 seconds, what is the car's acceleration ?
a)
12 m/s/s
b)
0 m/s/s
c)
432 m/s/s
27.
A student starts cycling from rest and reaches a speed of 12 m s-1 in 6 seconds. The distance travelled by him is
a)
18 m
b)
36 m
c)
54 m
d)
72 m
28.
A stone is being thrown vertically upwards with an initial velocity of 20 m s-1. Calculate the time taken for the stone to go up and come down to the ground. [g = 10 m s-2]
a)
0 s
b)
1 s
c)
2 s
d)
4 s
29.

A cheetah can accelerate from rest to a speed of 30.0 m/s in 7.00 s. What is its acceleration?

a)

4.29 m/s3

b)

4.29 m/s2

c)

4.29 m/s1

d)

4.29 m/s

30.
Ten seconds after starting from rest, a freely falling object will have a speed of about _____________.
a)
100 m/s
b)
500 m/s
c)
50 m/s
d)
10 m/s
31.
How far would an object in free fall, fall after 2 seconds?
a)
20 meters
b)
30 meters
c)
15 meters
d)
10 meters
32.

From the same height (and at the same time), one ball is dropped and another ball is fired horizontally. Which one will hit the ground first?

a)

the “dropped” ball

b)

the “fired” ball

c)

they both hit at the same time

d)

it depends on how hard the ball was fired

e)

it depends on the initial height

33.

A projectile is launched from the ground at an angle of 30o. At what point in its trajectory does this projectile have the least speed?

a)

just after it is launched

b)

at the highest point in its flight

c)

just before it hits the ground

d)

halfway between the ground and the highest point

e)

speed is always constant

34.

What is the shape of the path of any projectile?

a)

Hyperbola

b)

Hypotenuse

c)

Parabola

d)

Diagonal

35.

If a projectile is launched horizontally from a height of 12 m, how long will it take to hit the ground?

a)

2.45 seconds

b)

5.16 seconds

c)

1.56 seconds

d)

4.25 seconds

36.

If a projectile is launched with an initial vertical velocity (Voy) of 60 m/s, how long will it take to reach its highest point?

a)

5.98 seconds

b)

6.12 seconds

c)

6.58 seconds

d)

6.92 seconds

37.

A man wants to shoot an arrow so that it has the greatest range (horizontal distance). At what angle should he shoot the arrow?

a)

10 degrees

b)

45 degrees

c)

60 degrees

d)

90 degrees

38.

When an object is launched horizontally, what is the initial vertical velocity?

a)

0 m/s

b)

It's always 9.8 m/s

c)

It depends on the horizontal launch speed

d)

It depends on the color of the object being launched

39.

A 5 kg mass and a 10 kg mass are launched horizontally from the same height. Which hits the ground first? (Neglect air resistance)

a)

The 5 kg mass

b)

The 10 kg mass

c)

They will hit at the same time

d)

It depends on the launch velocity

40.

A soccer ball is kicked with a 36 degree angle and a velocity of 23 m/s. Find the horizontal component of the balls velocity.

a)

13.5 m/s

b)

14.1 m/s

c)

18.6 m/s

d)

33.1 m/s

41.
What is the unit to MEASURE force?
a)
Kilogram
b)
Meter
c)
Pascal
d)
Newton
42.
You and your dad are moving the couch from one side to another. Your dad pushes with a force of 35 N to the right and you push with a force of 25 N right. What is the net force on the couch?
a)
60 N right
b)
10 N left
c)
60 n right
d)
50 N left
43.

The formula for Weight.

a)

F = ma

b)

F = mv

c)

F = mg

d)

F = mt

44.

A resistance to a change in motion.

a)

Force

b)

Friction

c)

Inertia

d)

acceleration

45.

A magician pulls a table cloth out from under dishes, demonstrates which law of motion.

a)

1st Law

b)

2nd Law

c)

3rd Law

d)

4th Law

46.

A car comes to a screeching halt and the passengers move forwards being restrained by their seat-belts is a good example of this.

a)

force

b)

inertia

c)

velocity

d)

acceleration

47.

The type of friction you overcome to "start" and object to move.

a)

inertia

b)

static

c)

kinetic

d)

energy

48.

A force that opposes motion.

a)

inertia

b)

friction

c)

gravity

d)

energy

49.

A car has a mass of 2,000 kg, how much force is acting on it if it is being accelerated at 4 m/s2?

a)

2,000 Kg

b)

2,000 N

c)

8,000 N

d)

500 N

50.

A leftward force is applied to a crate to push it across the floor at a constant speed. Which is the correct force diagram?

a)
b)
c)
d)
51.

A downward-moving skydiver who has just opened the parachute is slowing down.

a)
b)
c)
d)
52.
Calculate the net force.
a)
600 N
b)
66.7 N
c)
.015 N
53.
Calculate the Acceleration.
a)
20
b)
5
c)
.2
d)
80
54.

In this type of collision, objects deform and stick together

a)

elastic

b)

inelastic

c)

momentum

d)

impulse

55.

In this type of collision, objects keep their shape and bounce off of each other

a)

elastic

b)

inelastic

c)

momentum

d)

impulse

56.

units for momentum

a)

m/s

b)

m/s2

c)

m

d)

kg*m/s

57.

units for velocity

a)

m/s

b)

m/s2

c)

m

d)

kg*m/s

58.
Momentum is a ____________________ quantity
a)
science
b)
scalar
c)
vector
d)
energy
59.
The equation to calculate momentum is
a)
p=mv
b)
p=1/2mv2
c)
p=mgh
d)
p=mg
60.

When comparing the momentum of 2 moving objects, which of the following is correct?

a)

the object with the higher velocity will have less momentum if the masses are equal

b)

the more massive object will have less momentum if its velocity is greater.

c)

the less massive object will have less momentum if the velocities are the same

d)

the more massive object will have less momentum if the velocities are the same

61.

a cannon recoils after shooting a cannon ball. the velocity of the cannon's recoil is small because the

a)

impulse on the cannon is small

b)

mass of the cannon is large

c)

force on the cannon is small

d)

mass of the cannon ball is large

62.

If the impulse acting on two objects is the same then

a)

the mass of both objects is the same

b)

the change in velocity of both objects is the same

c)

the change in momentum of both objects is the same

d)

the amount of contact time is the same

e)

the force exerted on both objects is the same

63.

An 3000 kg truck going 25 m/s slams into a 1500 kg car that is sitting still, 2m from the curb. What is the total momentum before the collision?

a)

3000 kg*m/s

b)

4500 kg*m/s

c)

75000 kg*m/s

d)

78000 kg*m/s

64.

What is the momentum of a 2000 kg car that is sitting still at a traffic light for 5 seconds?

a)

5 kg*m/s

b)

0 kg*m/s

c)

400 kg*m/s

d)

10000 kg*m/s

65.

A ball with 5 kg*m/s of momentum hits another ball with 2 kg*m/s of momentum. What is the total momentum before the collision?

a)

2 kg*m/s

b)

5 kg*m/s

c)

7 kg*m/s

d)

10 kg*m/s

66.
At which point is potential energy greatest?
a)
W
b)
X
c)
Y
d)
Z
67.
A roller coaster has a mass of 250 kg, and is 50 meters above the ground, what is the potential energy? PE=mgh
a)
122,625 Joules
b)
5,600 Joules
c)
234,799 Joules
68.
A baby carriage that is carrying twins is sitting at the top of a knoll that is 21 m high. The carriage
with the babies are 48kg. What is the Potential Energy of the twins and the carriage? PE=mgh
a)
5,524 Joules
b)
45,125 Joules
c)
9,888 Joules
69.
A cheetah can run briefly with a speed of 31.0 m/s. Suppose a cheetah with a mass of 47.0 kg runs at this speed. What is the cheetah’s kinetic energy? KE=1/2mv^2
a)
15,500 Joules
b)
22,583 Joules
c)
15 Joules
d)
45,543 Joules
70.
You apply a force of ? to a wheelbarrow and moved it 6 m resulting in 48 J of work. How much force did you do on the dresser? w=Fd
a)
8 N
b)
8 J
c)
288 J
d)
288 N
71.
How far does a car that weighs 5,000 N go if 18,000 J of work is done on it? w=Fd
a)
3.8 m
b)
3.7 m
c)
3.2 m
d)
3.6 m
72.
_____ the amount of work done in a certain amount of time or the rate at which work is done. 
a)
power
b)
force
c)
energy 
d)
kinetic energy 
73.
A force of 470 N is applied to stretch a spring which has a spring constant, k=1100 N/m.  How much does the spring stretch past its free length?
a)
0.214 m
b)
2.34 m
c)
0.427 m
d)
5.17 X 10^5 m
74.
Which of the following is a true statement regarding springs?
a)
The higher the value of the spring constant, the stiffer the spring.  
b)
In Hooke's law, the force exerted by the spring acts in the same direction as displacement.  
c)
Springs are designed to provide unpredictable variations in force.  
d)
The force exerted by a spring has a quadratic relationship with the displacement form equilibrium.  
75.

When an object gains electrons it becomes __________

a)

Neutral

b)

Positively charged

c)

Negatively charged

76.
What is the name of the particle that is being transferred?
a)
Proton
b)
Neutron
c)
Electron
d)
Positron
77.

Two like charges

a)

neutralize each other.

b)

repel each other.

c)

must be neutrons.

d)

attract each other.

78.

Which of the following is not a good conductor of electricity?

a)

copper

b)

silver

c)

Glass

d)

aluminum

79.
How is the electric force between two charges affected when both of the charges are doubled?
a)
four times as much
b)
two times as much
c)
half as much
d)
one quarter as much
80.

The force between two point charges is F when they are separated by a distance r. If the separation is increased to 3r what is the force between the charges?

a)

F/3r

b)

F/9r

c)

F/3

d)

F/9

81.

Which is the value of the constant in Coulomb's equation?

a)

k = 9·10-9

b)

k = 9.8

c)

k = 6.67·10-11

d)

k = 9 ·109

82.

Approximately how much force would be generated by two charged objects held 2 m apart, if q1 has a charge of 3.0 C and q2 has a charge of 4.0 C?

a)

0.5 N

b)

1.5 N

c)

3 N

d)

6 N

83.
How many Volts would it take to push 1 Amp through a resistance of 1 Ohm
a)
10 volts
b)
1 volt
c)
48 volts
d)
5 volts
84.

What is current measured in?

a)

Ω (Ohms)

b)

A (Amps)

c)

V (Volts)

d)

W (Watts)

85.
How many Volts would we need to produce a current flow of 8 Amps through a 6 Ohm resistor
a)
12 volts
b)
24 volts
c)
1.3333
d)
48 volts
86.

A 10kg car travels at a constant speed of 20.0 m/s around a horizontal circular track. Which diagram correctly represent the direction of the car's velocity (v) and the direction of the centripetal force (Fc) acting on the car at a particular moment?

a)
b)
c)
d)
87.

Centripetal force, created by swinging something in a circle, acts in a direction--

a)

along the path of motion

b)

away from the center of the circle

c)

toward the center of the circle

d)

tangent to the circle

88.
Two objects are attracted to each other with 36 N of gravitational force.
What would the force between them be if one of the masses were doubled?
a)
9
b)
18
c)
72
d)
144
89.

Two masses 8000 kg and 1500 kg are 1.5 m apart. Find their gravitational pull.

a)

3 N

b)

0.0003 N

c)

3000 N

d)

30 N

90.
Centripetal acceleration is GREATER when...
a)
the radius of the circular motion is decreased
b)
the radius of the circular motion is increased
c)
the linear speed is decreased

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