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Physics Final Exam

Total questions: 50

Worksheet time: 3hrs 49mins

Name
Class
Date
1.

What is the standard metric unit for length?

a)

meter

b)

yard

c)

second

d)

inch

2.

What is the standard metric unit of time?

a)

second

b)

hour

c)

meters/second

d)

meters/second2

3.

What is the standard metric unit for mass?

a)

kilogram

b)

gram

c)

pound

d)

momentum

4.

What is the standard metric unit for volume?

a)

liter

b)

gallon

c)

quart

d)

cup

5.

A vector has...

a)

magnitude only

b)

magnitude and direction

c)

direction only

d)

neither direction or magnitude

6.

A scalar has...

a)

magnitude only

b)

direction only

c)

magnitude and direction

d)

nothing to do with physics

7.

Equilibrium is when...

a)

there are no forces acting on an object

b)

there are balanced forces acting on an object

c)

an object is at rest

8.

An object can be in equilibrium if it is moving at a constant speed

a)

True

b)

False

9.

A force is...

a)

a push or pull

b)

measured in m/s

c)

always positive

d)

a measure of mass

10.

Force is measured in

a)

m/s

b)

m/s2

c)

N

d)

kg m/s

11.

Calculate force by...

a)

multiplying mass & acceleration

b)

multiplying mass & velocity

c)

dividing mass & acceleration

d)

dividing mass & velocity

12.

Which is Newton's 1st Law?

a)

An object in motion always stays in motion

b)

An object in motion stays in motion and an object at rest stays at rest unless acted upon by an outside force

c)

An object at rest stays at rest unless acted upon by an outside force

d)

An object in motion stays at rest and an object at rest stays in motion unless acted upon by a force

13.

What is Newton's 2nd Law?

a)

F=m/a

b)

m=Fa

c)

F=ma

14.

Inertia is...

a)

equal to momentum

b)

my grandmother's cousin

c)

equal to weight

d)

the tendency for an object to keep doing what it's doing

15.

The force between any two surfaces in contact

a)

support force

b)

friction

c)

gravity

d)

air resistance

16.

Friction...

a)

sometimes speeds things up

b)

always slows things down

c)

is always negative

d)

sometimes creates energy

17.

If you go to the moon... this will change

a)

energy

b)

weight

c)

mass

d)

time

18.

Another name for the force of gravity

a)

weight

b)

mass

c)

energy

d)

momentum

19.

In this type of collision, objects are not deformed and no heat is created

a)

elastic

b)

inelastic

c)

explosions

d)

cataclysmic

20.

What approximate value does the acceleration due to gravity have here on earth?

a)

10m/s2

b)

5m/s2

c)

it can not be determined

d)

100m/s2

21.

How do you calculate average speed?

a)

divide distance by time

b)

divide time by distance

c)

multiply distance and time

d)

divide velocity by time

22.

The speedometer on your car shows

a)

acceleration

b)

average speed

c)

instantaneous speed

d)

momentum

23.

What are the standard units of velocity?

a)

m/s

b)

m/s2

c)

kg m/s

d)

N

24.

If an object is only acted upon by the force due to gravity, it is in

a)

free fall

b)

equilibrium

c)

mechanical equilibrium

d)

constant motion

25.

Newton's Third Law states...

a)

for every action, there is a reaction

b)

for every action, there is an equal reaction

c)

for every action, there is an equal and opposite reaction

d)

for every action, there is an unequal reaction

26.

Conservation of momentum is

a)

true half of the time

b)

always true

c)

only true for heavy objects

d)

only true for objects moving at constant speed

27.

Calculate momentum by

a)

multiplying mass and velocity

b)

dividing mass by velocity

c)

dividing velocity by mass

d)

multiplying mass and volume

28.

The units of momentum are

a)

kg m/s

b)

kg m/s2

c)

m/s

d)

N

29.

This type of collision is caused by internal forces that accelerate particles outward.

a)

elastic

b)

inelastic

c)

explosion

d)

cataclysmic

30.
What is this graph representing?
a)
Constant Speed
b)
Acceleration (speeding up)
c)
Deceleration (slowing down)
d)
No motion
31.
If you run around the football field (which is 2 miles) 3 times, what is your distance?
a)
0 miles
b)
3 miles
c)
6 miles
d)
9 miles
32.
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 mph
33.
What is velocity?
a)
the quickness of an object
b)
the location of an object
c)
acceleration
d)
speed in a specific direction
34.
On a distance vs. time graph, the steeper the slope _____
a)
the slower the speed
b)
the faster the speed
c)
less acceleration
d)
greater acceleration
35.
A magician pulls a tablecloth out from under dishes and glasses on a table without disturbing them.
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
d)
None of them
36.

A canoe floats backwards away from the dock as a person jumps from the boat towards the dock.

a)

Newton's 1st Law

b)

Newton's 2nd Law

c)

Newton's 3rd Law

d)

None of them

37.
Rockets are launched into space using jet propulsion where exhaust accelerates out from the rocket and the rocket accelerates in an opposite direction.
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
d)
None of them
38.
A picture is hanging on a wall and does not move.
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
d)
None of them
39.

A pizza box slides off the front seat and onto the floor when the driver makes a quick stop because the box wants to remain in continuous motion even when the car stops.

a)

Newton's 1st Law

b)

Newton's 2nd Law

c)

Newton's 3rd Law

d)

None of them

40.
Pushing a child on a swing is easier than pushing an adult on the same swing, because the adult has more inertia.
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
d)
None of them
41.
Acceleration is produced when a force acts on a mass. The greater the mass (of the object being accelerated) the greater the amount of force needed (to accelerate the object).
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
d)
None of them
42.
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
43.
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
44.
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
45.
In any collision (crash) the ______ is ALWAYS constant
a)
Total Momentum
b)
total speed
c)
total Velocity
d)
Energy
46.
When two objects collide, the Pbefore is ____________ the Pafter.
a)
more than 
b)
less than 
c)
equal to
d)
unrelated to
47.
Which of the following has the greatest momentum? 
a)
a scurrying cockroach
b)
a parked semi-truck
c)
more information is needed
48.
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.
49.
A 9 kg blob moving at 5 m/s collides and sticks to a second blob with a mass of 5 kg. If the two bobs stick together, what will the velocity of the two blobs move at?
a)
3.57 m/s
b)
3.2 m/s
c)
10.0  m/s
d)
9.0  m/s
50.
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