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PHYSICS MYE REVISION

Total questions: 66

Worksheet time: 2hrs 41mins

Name
Class
Date
1.
a)

A

b)

B

c)

C

d)

D

2.

A tunnel has a length of 50 km. A car takes 20 min to travel between the two ends of the tunnel. What is the average speed of the car?

a)

2.5 km / h

b)

16.6 km / h

c)

150 km / h

d)

1000 km / h

3.
a)

pole 1 and pole 2.

b)

pole 2 and pole 3.

c)

pole 3 and pole 4.

d)

pole 4 and pole 5.

4.
a)

A

b)

B

c)

C

d)

D

5.

A small steel ball is dropped from a low balcony. Ignoring air resistance, which statement describes its motion?

a)

It falls with decreasing acceleration.

b)

It falls with constant acceleration.

c)

It falls with decreasing speed.

d)

It falls with constant speed.

6.

Which speed/ time graph applies to an object at rest?

a)

A

b)

B

c)

C

d)

D

7.
a)

A

b)

B

c)

C

d)

D

8.
a)

10 m

b)

20 m

c)

100 m

d)

200 m

9.
a)

150 m

b)

300 m

c)

600 m

d)

1200 m

10.
a)

4.0 s

b)

6.0 s

c)

10 s

d)

16 s

11.
a)

A

b)

B

c)

C

d)

D

12.
a)

A

b)

B

c)

C

d)

D

13.
a)

A

b)

B

c)

C

d)

D

14.
A horse gallops around a circular arena.  The centripetal force on the horse is ___.
a)
directed outward
b)
tension
c)
directed toward the center of the arena
d)
9.8 N
15.
Which of the following increase the centripetal force?
a)
Increasing the radius
b)
Increasing the velocity
c)
Decreasing the mass
d)
Decreasing the acceleration
16.
When an object is in circular motion it is constantly changing its velocity.
a)
True
b)
False
17.
A car with mass m travels around a curve with velocity v. What do you know about the centripetal force if the radius triples?
a)
9.8?
b)
Force triples
c)
Force divides by 3
d)
Force divides by 9
18.
If centripetal force stopped acting on all satellites they would continue traveling in space in a constant direction and constant speed.
a)
True
b)
False
19.
The centripetal force of satellites is similar to gravitational force because they are both a net force towards the center of earth.
a)
True
b)
False
20.

A car is rounding a bend as shown in the diagram. Which arrow correctly shows the direction of the cars velocity?

a)

A

b)

B

c)

C

d)

D

21.

A car is rounding a curve as shown in the diagram. Which arrow correctly shows the direction of the centripetal force keeping the car in circular motion?

a)

A

b)

B

c)

C

d)

D

22.

Why do sharp turns in roads have reduced speed limits posted?

a)

The lower the speed the lower centripetal force.

b)

The lower the speed the higher centripetal force.

c)

The lower the speed the larger the radius.

d)

Speed limits aren't reduced on sharp turns.

23.

If car A and car B are both traveling at the same speed, which will require a higher centripetal force?

a)

Car A

b)

Car B

c)

They have the same centripetal force

24.

Why does velocity happen when going in a circle even if you are going the same speed?

a)

The direction around the circle changes at every point.

b)

Velocity does not change

c)

Because direction is the same around the circle

d)

Neither

25.
The impulse is ______ the change in momentum
a)
greater than
b)
equal to
c)
less than
d)
always double
26.
The momentum of an object depends upon the object's ___________&_____________.  
a)
size and shape
b)
mass and speed
c)
mass and velocity
d)
mass and energy
27.

Determine the momentum of 1000-kg car moving northward at 20 m/s.

a)

20000 N

b)

20000 Joules

c)

20000 kgms-1

d)

20000 kgms-1 north

28.
When the speed of an object is doubled, its momentum __________.
a)
remains unchanged 
b)
doubles
c)
quadruples
d)
decreases
29.
The equation to calculate momentum is __________.
a)
p=mv
b)
p=1/2mv2
c)
p=mgh
d)
p=mg
30.
Which object listed below has the greatest momentum?
a)
A 0.05 kg object rolling at 0.2 m/s.
b)
A 0.15 kg object rolling at 2 m/s.
c)
A 0.15 kg object rolling at 1 m/s
d)
A 0.4 kg object rolling at 2 m/s.
31.

In a closed system, momentum is never...

a)

transferred or destroyed

b)

created or destroyed

c)

transferred

d)

created

32.

The conservation of momentum means...

a)

The momentum before an event disappears after the event

b)

The momentum before and after the collisions are equal

c)

The momentum before an event increases after the event

d)

The momentum before and after an event changes

33.
The units for Impulse are
a)
N/s
b)
N.s
c)
N
d)
m/s
34.
The impulse-momentum theorem states that
a)
the impulse on an object is equal to the change in momentum it causes 
b)
the force on a moving object is equal to the magnitude of the impulse.
c)
the impulse on an object is greater than the change in momentum it causes 
d)
the impulse on an object is less than the change in momentum it causes
35.
Which has more momentum: a car stopped at a red light or a bike moving at 15 mph?
a)
car
b)
bike
c)
they are equal
d)
cannot determine using the info provided
36.

True or false: The total momentum before and after an elastic collision remains the same.

a)

true

b)

false

37.

If a 100kg car has a momentum of 2000 kg m/s, how fast is it going? Do not include units

38.
In any collision (crash) the ______ is ALWAYS constant
a)
Total Momentum
b)
total speed
c)
total Velocity
d)
Energy
39.
When two objects collide, the Pbefore is ____________ the Pafter.
a)
more than 
b)
less than 
c)
equal to
d)
unrelated to
40.
What is the unit for velocity?
a)
m/sec
b)
kg/sec
c)
kg/m
d)
kg m/sec
41.

Before a car accident, two cars had a total momentum of 1500 kg m/s. After the collision, what is the total momentum?

a)

not enough information

b)

1500 kg m/s

c)

750 m/s

d)

3000 m/s

42.
What is the force that causes objects to fall to Earth?
a)
Air resistance
b)
Gravity
c)
Water resistance
d)
Pressure
43.

What is the name of the units that we measure force in?

a)

Einsteins

b)

Newtons

c)

Kilograms

d)

Metres

44.
In which direction does gravity act?
a)
Downwards
b)
Upwards
c)
In all directions
d)
Towards the centre of the Earth
45.
When two objects rub together, what force do they produce
a)
Gravity
b)
Air resistance
c)
Friction
d)
Water resistance
46.
Which of these uses friction?
a)
A parachute
b)
A ball falling through the sky
c)
Brakes on a bike
d)
A wind turbine
47.
What is a Force?
a)
The distance
b)
Mass
c)
A push or pull
d)
Give me a  failing grade 
48.
An _______ force must act on an object for it to CHANGE it's motion
a)
balanced
b)
unbalanced
c)
gravitational
d)
electrical
49.

If the net force is equal to zero, the forces acting on the object are

a)

balanced

b)

unbalanced

50.

The unit of force is

a)

ms-1

b)

ms-2

c)

Newton

d)

kg

51.

Which of the following would most likely stop the motion of an airplane?

a)

electricity

b)

friction

c)

heat

d)

magnetism

52.

___________ is a measure of the amount of matter in an object.

a)

gravity

b)

force

c)

mass

53.

The more mass

a)

the more matter

b)

the less matter

c)

the mass will not be affected

54.
Balanced forces do not change the objects speed or 
a)
direction
b)
distance 
c)
time
d)
mass
55.

Turning effect of force is ________.

a)

torque

b)

moment of force

c)

balancing moment

d)

couple

56.

The moment of a force causes an object to

a)

move forward

b)

move backward

c)

stop moving

d)

turn about a fixed point

57.

Moment can be calculated using the equation:

a)

M = F × d

b)

M = F / d

c)

M = F2 × d

d)

M = F / d2

58.
What is the moment acting on the seesaw?
a)
1.6Nm
b)
15Nm
c)
16N
d)
4Nm
59.

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.

60.

The figure shows a handle with two forces of identical magnitude applied at different position at the same time. The handle is free to move. What is the net effect of the forces on the handle?

a)

The handle will turn clockwise.

b)

The handle will turn anticlockwise.

c)

The handle will remain at this position without moving.

d)

The handle will turn clockwise first, then anticlockwise.

61.

The Principle of Moments states that the total clockwise moment about a pivot is equal to the total anti-clockwise moment about the same pivot when the body is balanced.

a)

True

b)

False

62.

Jack has a weight of 300 N and sits 2.0 m from the pivot of see-saw. Jill has a weight of 450 N and sits 1.5 m from pivot. Who will move down?

a)

Jack

b)

Jill

c)

Both of them

d)

None of them

63.
A seesaw is unbalanced with two people of different masses sitting equal distances from the center. Which of the following will result in equilibrium?
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.
64.
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
65.

When an object is in equilibrium, which equation is true?

a)

Clockwise moment = anticlockwise moment

b)

Clockwise moment + anticlockwise moment = 0

c)

Clockwise moment / anticlockwise moment = 0

d)

Clockwise moment + anticlockwise moment = resultant force

66.

Match the following units with their variables!

a)

Mass

1.

kilograms

b)

Velocity

2.

m/s

c)

Impulse

3.

Ns

d)

Momentum

4.

kg⋅m/s

e)

Time

5.

seconds

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