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WorksheetsAP Fall Exam Review
Total questions: 68
Worksheet time: 44mins
Describe the motion
speeding up; Negative direction
slowing down; Negative direction
slowing down; Positive direction
speeding up; Positive direction
Which section of this v-t graph shows constant velocity?
AB
BC
EF
GH
Which is TRUE?
the object had a constant speed in the positive direction
the object never stopped
the object slowed down in the positive direction
the object sped up in the positive direction
A car goes from rest to 30 m/s. If it takes the car 40 seconds to reach that speed then what is the car's rate of acceleration?
1.33 m/s2
0.75 m/s2
10 m/s2
0 m/s2
What is the average velocity of the object between 10 and 15 seconds?
6 m/s
1.5 m/s
-4 m/s
0 m/s
What is the average velocity of the object between 15 and 40 seconds?
6.0 m/s
1.5 m/s
-4 m/s
0 m/s
A ball is thrown downward from the top of a roof with a speed of 25 m/s. After 2 s, its velocity will be about:
5 m/s
-5 m/s
-45 m/s
45 m/s
On a position vs. time graph, the steeper the slope _____
the slower the speed
the faster the velocity
less acceleration
greater acceleration
Choose the xt graph that represents this motion.
Which v-t graph shows this motion?
What is the displacement from t = 0-6s?
12m
4m
-4 m
6 m
Choose the math model that best shows the motion.
x = (1 m/s) t + 0m
x = (-1m/s) t + 0m
x = (1m/s) t + 10m
x = (-1m/s) t + 10m
What is velocity? Select all that apply.
XF - Xi
how much distance is covered over a period of time
Δx/Δt
the change in position over a time period
displacement over a time period
Jamie decides to visit her sister. She leaves home and drives 1500 m in 25 s when she realizes she forgot her purse. She speeds home, covering the 1500 m in only 10 s. What is her average speed for the trip?
0 m/s
85.7 m/s
60 m/s
150 m/s
Jamie decides to visit her sister. She drives 1500 m in 25 s when she realizes she forgot her purse at home. She speeds home, covering the 1500 m in only 10 s. What is her average velocity for the trip?
0 m/s
85.7 m/s
-85.7 m/s
150 m/s
In each of the following cases, determine which car has the greatest acceleration magnitude.
starts from 0 m/s to 20 m/s in 4 seconds.
speed up from 20m/s to 40m/s in 3 seconds
slow down from 50m/s to stop in 2 seconds
starts from 0 m/s to 20m/s in 5 seconds
The unit we use to measure acceleration is ___. Select all that apply.
m/s
m
m/s/s
m/s2
Which lines show both positive velocity and negative acceleration for at least some part of the time?
pink, blue and red
green and orange
only orange
only pink
Describe the signs of velocity and acceleration of an object given by this Position-time graph.
velocity = negative, accel = negative
velocity = positive, accel = negative
velocity = negative, accel = positive
velocity = positive, accel = positive
When using the midpoint rule to find instantaneous velocity, you must calculate the average (a) for a time interval in which your time of interest is in the middle.
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 downward-moving skydiver who has just opened the parachute is slowing down.
The missing force is
normal force
applied force;
frictional force
tension force
In this velocity vs time graph of an object, in which regions are the forces on the object balanced?
All of them
None of them
AB, CD, and GH
BC, DE, and FG
At the beginning of the motion map the object is?
moving at a velocity of 3 km/s
moving at a velocity of 4 km/s
at rest for 1 second
at rest for 3 seconds
Based on the situation, which force should be separated into components?
weight
normal force
friction
normal force and friction
For the image above, which force or forces should be broken into components?
tension force A
tension force B
gravitational force
both tension forces
What is the displacement from 0-5 seconds?
25 m
5 m
62.5 m
15 m
What is the average speed of the object between 0 and 30 seconds?
6.0 m/s
1.5 m/s
4 m/s
0 m/s
In section 2 of the velocity-time graph, the object is
speeding up moving in the positive direction
slowing down moving in the positive direction
speeding up moving in the negative direction
slowing down moving in the negative direction
Which lines show a positive acceleration?
pink and blue
green and orange
only orange
only red
In this velocity vs time graph of an object, in which regions is the net force on the object negative?
All of them
None of them
EF only
AB, CD, GH
What is the physics term for any push or pull interaction between a system and the environment around it?
accleration
velocity
speed
force
What is the unit used for force?
kilogram
Newton
meters
Joule
Newton's first law tells us that an object that is at rest will remain at rest, and an object that is moving will continue to move in a straight line with constant speed, if and only if the net force acting on that object is:
zero
greater than zero
What is the net force acting on the object?
20 N Right
40 N Right
20 N Left
40 N Left
When is your normal force greater than Fg in an elevator? Select all that apply.
When the elevator is moving upward and speeding up
When the elevator is moving upward and slowing down
When the elevator is moving up at constant speed
When the elevator is moving downward and speeding up
When the elevator is moving downward and slowing down
When mass increases, acceleration....?
increases
decreases
doesn't change
goes to 0
When net force increases, acceleration....?
increases
decreases
doesn't change
goes to 0
If the person is pushing backwards with the paddle, why do they move forward?
The person will actually move backwards, they need to paddle the other way
The water pushes back with an equal and opposite force
The person is pushing harder than the water
The water pushes back with a greater force than the person
When the person pushes on the wall, and the wall pushes back, why does the person move and not the wall?
The wall has more mass
The person is pushing harder than the wall
The wall is pushing harder than the person
The skateboard is pushing on the person
A bus hits a bug and the bug splatters on the windshield, which acceleration is greater?
The Bus
The Bug
They're the same
Gravity acting on the bus
When is your Fg greater than normal force in an elevator? Select all that apply.
When the elevator is moving upward and speeding up
When the elevator is moving upward and slowing down
When the elevator is moving up at constant speed
When the elevator is moving downward and speeding up
When the elevator is moving downward and slowing down
Which of the following factors affect the amount of friction between two objects?
type of surface & normal force
surface area of the objects
type of surface & weight of objects
temperature of the objects
The maximum static friction of a box is 5 N and the kinetic friction is 3 N. If the box is not moving and you apply 4N of force, the box will
not move
start moving
not enough info to decide
The maximum static friction of a box is 5 N and the kinetic friction is 3 N. If the box is already moving and you apply 4N of force, the box will
speed up
slow down
not enough info to decide
move forward at constant velocity
The maximum static friction of a box is 5 N and the kinetic friction is 3 N. If the box is already moving and you apply 2N of force, the box will
speed up
slow down
not enough info to decide
move forward at constant velocity
For car 1 μk=0.4 and for car 2 μk = 0.3 . If the cars have the same mass and are moving on a level road, which car has the greater friction force on it?
car 1
car 2
They have the same friction force.
not enough info
The velocity is always _____ to the line of a circle.
outwards
tangent
towards the centre
faster
An object which move in uniform circular motion must move with?
constant speed
constant direction
constant velocity
Which of the following depicts the direction of the velocity of the blowing ball in a circular motion?
A
C
B
D
SI units of angular velocity are
degree s-1
m s-1
rad s-1
A 0.50 kilogram object moves in a horizontal circular path with a radius of 0.25 meter at a constant speed of 4.0 meters per second. What is the magnitude of the object’s acceleration?
8 m/s2
32 m/s2
16 m/s2
64 m/s2
Which ball is faster ( has greater speed)?
The Blue ball
The Red ball
Both balls have the same speed
When an object is in circular motion it is constantly changing its acceleration.
True
False
