WorksheetsPhysics End of Year Final Review
Total questions: 105
Worksheet time: 1hrs 14mins
A vector is a quantity that has
magnitude and time
time and direction
magnitude and direction
direction and rhythm
A scalar is a quantity that has
direction
magnitude
time
color
Match each term with its formal physics definition
Displacement
The position of an object relative to its starting location
Velocity
The rate of change of displacement
Acceleration
The rate of change of velocity
Vector
A quantity with a magnitude and a direction
Scalar
A quantity with magnitude, but no direction
At the top of a projectile's path, its vertical velocity is:
Positive
Zero
Negative
A projectile is launched with an initial horizontal velocity of 4 m/s. It hits the ground 3 seconds later. How far has it gone horizontally?
(a)
A projectile has a path shaped like a _____.
ebola
parabola
elliptical
circle
A ball is thrown horizontally from the top of a hill. Is it accelerating?
Yes, but only vertically
Yes, but only horizontally
Yes it is accelerating horizontally and vertically
No, it is not accelerating at all
Vertical means ____________
up and down
left to right
side to side
diagonally
Horizontal means
up and down
left to right
in a circle
diagonally
Which force is the only one that acts on a projectile in free fall?
friction
gravity
normal force
tension force
What direction is the velocity vector for an object thrown straight up at 10 m/s and allowed to act under the influence of gravity?
down on the way up and up on the way down
down on the way up and down on the way down
up on the way up and down on the way down
What direction is the acceleration vector for an object thrown straight up at 10 m/s and allowed to act under the influence of gravity?
up on the way up and down on the way down
down on the way up and down on the way down
down for both
How can the vertical velocity be zero but the acceleration be -10 m/s/s?
the object is moving upward against gravity
the object is moving downward at that instant in time
gravity is the acceleration and it never turns "off"
A ball is thrown straight up in the air. After it reaches its peak and is 1 second into its treck back downward what is its velocity? (hint: how fast is it going at the top of its path?)
100 mps
1 mps
10 mps
1000 mps
A soccer ball is kicked with an initial velocity of 36 m/s at an angle of 50 degrees. What is the vertical speed at point C?
50 m/s
-9.8 m/s
0 m/s
36 m/s
A soccer ball is kicked with an initial velocity of 36 m/s at an angle of 50 degrees. What is the vertical acceleration at point B?
50 s2m
-9.8 s2m
0 s2m
36 s2m
A soccer ball is kicked with an initial velocity of 36 m/s at an angle of 50 degrees. What is the vertical acceleration at point C?
50 s2m
-9.8 s2m
0 s2m
36 s2m
A soccer ball is kicked with an initial velocity of 36 m/s at an angle of 50 degrees. What is the horizontal acceleration at point C?
50 s2m
-9.8 s2m
0 s2m
36 s2m
The soccer ball has an initial horizontal velocity of 34 m/s at point A. What is the horizontal velocity at point B?
24 m/s
-9.8 m/s
34 m/s
0 m/s
A ball thrown straight up takes 8 total seconds to complete its journey all the way up and down. 1 second into its journey and 7 seconds into its journey the magnitude of its velocity will be ______________ and its direction _______________.
opposite, the same
the same, opposite
the same, the same
opposite, opposite
Which of the following statements about the horizontal and vertical components of projectile motion is true?
Changes in the horizontal component occur only when the vertical component changes.
Both the horizontal and vertical components are always constant.
The vertical component changes while the horizontal component stays the same.
The horizontal and vertical components are dependent of each other.
Victor Velocity is standing on top of the roof of his house, firing stones with his slingshot over a level field. He is aiming straight outward, horizontally. If Victor pulls back harder on the sling to shoot a stone, which of the following quantities will be changed?
The vertical displacement of the stone.
The distance the stone travels, and the horizontal velocity.
The time it takes the stone to strike the ground, and the horizontal velocity.
Vector is a quantity with:
magnitude and direction
magnitude
direction
none of the above
Wind blowing at 20 knots
A deer running 15 meters per second due west
How far has a car going 20 m/s gone in 2 seconds?
20 m
40 m
60 m
80 m
A car starts out going 0 m/s and has an acceleration of 2 m/s2 . How far has it gone in 12 s?
2 m
12 m
24 m
144 m
For a lever to move, do forces have to be balanced or unbalanced
balanced
unbalanced
You need to lift a heavy statue 30 feet into the air. Which simple machine would be best to use?
Wheel and Axle
Inclined Plane
Pulley
Wedge
This is a rod balanced on a fixed point that can help
lift a heavy weight with less effort.
pulley
inclined plane
wheel and axle
lever
This machine uses wheels and a rope to raise, lower, or move a load
pulley
inclined plane
wheel and axle
lever
This is any slope or ramp that makes it easier to lift something.
pulley
inclined plane
wheel and axle
lever
This is an inclined plane wrapped in a spiral
screw
inclined plane
wheel and axle
wedge
jar lid
screw
window shade
pulley
axe
wedge
stairs
inclined plane
scissors
lever
How does a wheel barrow helps us to work easier?
It can carry heavy load of soil and other construction materials
It stops the motion of the object
It can move without pushing it
It can clean the surroundings
Simple machines have...
a lots of parts
a few parts
Pulley
Inclined plane
Lever
Screw
Wheel and axle
Wedge
Wheel and axle
Screw
Pulley
Lever
Pulley
Lever
Wedge
Screw
Inclined plane
Wheel and axle
Inclined plane
Pulley
Wedge
Lever
Wedge
Lever
Pulley
Wheel and axle
Screw
Wedge
Screw
Lever
Inclined Plane
Pulley
Complex machines have...
a few parts
lots of parts
Types of machines...
simple and complete machines
simple and complex machines
simple and non-simple machines
compound and essential machines
What are complex machines?
They are made of one simple machines like a wheel
They are made of two or more simple objects
They are made of two or more compound machines
They are made of two or more simple machines
Two of these are complex machines. Which ones?
Cars
Wheel
Bicycles
Pulley
What is a lever?
It is a flexible bar that rests on a fixed point.
It is a rigid circle that rests on a fixed point.
It is a rigid bar that rests on a fixed point.
Examples of simple machines: (choose three)
Wheel and axle
Bike
Pulley
Wedge
Train
Name this simple machine.
Lever
Wedge
Pulley
Inclined Plane
Name this simple machine.
Pulley
Wheel and Axle
Inclined Plane
Lever
Which simple machine is used in a wheelchair?
ramp
pulley
wheel and axle
What is the point that is on top of the triangle under the rod?
pulley
ramp
fulcrum
What happens if you decrease the distance between
the fulcrum and the load?
You use more force
You use less force
You use a fulcrum
Where is the fulcrum in CLASS-1 LEVER?
in the middle
at one end
under the rod
If the distance over which the work is done is longer, the force becomes ..........
more
less
the same
What defines a third-class lever?
The fulcrum is in the exact center
The fulcrum is between the effort and the load
The fulcrum and effort are at the same end
A simple machine is a device that helps to reduce the amount of _____ required to do the same amount of work.
force
energy
work
________________ is done whenever a force moves an object a distance.
Load
Friction
Force
Work
How can simple machines make work easier?
by decreasing the force needed to complete the task
by increasing the friction between the machine and the object
by adding more work on the object than originally applied
by removing the force of gravity on the object
Simple machines can make work easier by reducing the input force needed to move an object. However, there is a trade off for decreased input. What is the trade off?
The distance the object is moved is increased.
The distance the object is moved is decreased.
The amount of work is increased.
The amount of work is decreased.
A simple machine that splits an object apart is a _______.
Wheel and Axel
fulcrum
wedge
lever
A ramp is an example of a(n) _______.
inclined plane
fulcrum
force
lever
The bow or front of a boat splits the water as the boat moves. What kind of simple machine would the bow of the boat be?
wedge
screw
ramp
lever
Using the back of a hammer makes it much easier to remove a nail from a wooden board. What kind of simple machine would the hammer be classified as if you are using it for this purpose?
Wedge
Lever
Pullye
Inclined Plane
What is the formula needed to solve for work?
w = f/d
w = f*d
w = f+d
If you push a cart with a force of 60 N for 2 m, how much work have you done?
120 J
30 J
120 N
30 N
Two people shove on a wall with 100 N of force. The wall does not move. How much work have they done?
100J
100N
0J
0N
A 100 Newton force is applied to move a 15 kg object a distance of 5 meters. How much work is done?
1500 Joules
Which type of energy has to do with objects in motion?
Potential
Kinetic
Which of these has the most potential energy.
A
B
C
D
Which of the following is stored energy?
Kinetic Energy
Potential Energy
Which is an example kinetic energy?
A parked car
A car racing on the track
Where does the waterfall have more potential energy?
At the very top of the waterfall, right before the water falls down.
As the water is falling down the waterfall.
What type of energy is an arrow zooming toward a target?
Kinetic Energy
Potential Energy
What type of energy is an arrow that is about to be released?
Kinetic Energy
Potential Energy
When we're talking about a pendulum, what does T stand for?
pi
period
length
gravity
What is the unit for the period of a pendulum?
second
meter
m/s/s
Newton
Which of these does not affect the period of a pendulum?
length
gravity
mass
A pair of trapeze performers at the circus is swinging from ropes attached to a large elevated platform. Suppose that the performers can be treated as a simple pendulum with a length of 16 m. Determine the period for one complete back and forth cycle. (Useful equations are on the board).
2 sec
12 sec
8 sec
10 sec
Which would have the longest period?
Pendulum A: A 200-g mass attached to a 1.0-m length string
Pendulum B: A 400-g mass attached to a 0.5-m length string
A
B
Same
What happens to water when you put it in a vacuum?
It starts to boil because of the release of pressure.
It just sits there.
It gets really hot. If you leave it long enough it might get hot enough to boil.
It spontaneously disappears.
What is a Barometer?
It is a device that is used to measure water temperature.
It is a device that is used to measure pressure in water mains.
It is a device that measures atmospheric pressure.
It is a device that measures the length of bars in meters.
What is the purpose of a water tower?
To store water for later
To maintain constant pressure in the water mains.
To tell you what town you just entered.
To reduce pressure at the water treatment plant.
Which situation produces more pressure on the floor?
standing on one foot
standing on two feet
standing on four feet
all produce the same pressure
Which situation produces more force on the floor?
standing on one foot
standing on two feet
standing on four feet
all produce the same force
Which one of the following is an example of a hydraulically operated machine?
A wheel barrow
A laptop computer
A bulldozer
A vacuum cleaner
Which of the following sentence is true?
Gases are easy to squish
Liquids are easy to squish
The basic idea behind any hydraulic system is very simple: Force that is applied at one point is tranitted to another point using________
A compressible fluid
An incompressible fluid
A cold compress
A hot compress
