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WorksheetsPhysics Fall Final Review
Total questions: 45
Worksheet time: 1hrs 14mins
The horizontal and vertical motions are tied together by ___.
time
velocity
acceleration
displacement
You toss a ball to a friend with a slight upward angle. On its way up, the acceleration of the ball is ___.
forward
up
down
at an upward angle
An Alaskan rescue plane traveling 50 m/s drops a package of emergency rations from a height of 125 m to a stranded party of explorers. Where does the package strike the ground relative to the point directly below where it was released?
The acceleration of gravity is 10 m/s2.
300 m
250 m
50 m
200 m
Bill kicks a rock off the top of his apartment building. It strikes a window across the street 10 m away. If the window is 45 m below the position where Bill contacted the rock, how long was it in the air?
The acceleration of gravity is 10 m/s2.
4 s
2 s
9 s
3 s
A billiard ball traveling at 3 m/s collides with a second billiards ball. Immediately after the collision, the first ball comes to rest. What is the speed of the second ball after the collision?
3 m/s
6 m/s
0 m/s
1.5 m/s
An elastic collision is one in which
neither kinetic energy nor momentum is conserved.
momentum is not conserved but kinetic energy is conserved.
kinetic energy and momentum are both conserved.
kinetic energy is conserved but momentum is not conserved.
A large 4 kg bird, searching for food, spots a large, 1 kg bug hovering in its vicinity. If the bird is traveling at 10 m/s, what will be his velocity immediately after nabbing the bug?
5 m/s
0 m/s
10 m/s
8 m/s
A 200 kg van runs into the back of a 600 kg compact car at rest. They move off together at 5 m/s. Assuming no friction with the ground, find the initial speed of the van.
5 m/s
0 m/s
20 m/s
7 m/s
Four forces act on an object.
If the object is accelerating downward, compare the forces.
F4=F3, F1>F2
F4=F3, F1<F2
F4>F3, F1=F2
F4<F3, F1=F2
Four forces act on an object.
If the object is accelerating upward, compare the forces.
F4=F3, F1>F2
F4=F3, F1<F2
F4>F3, F1=F2
F4<F3, F1=F2
Janet jumps horizontally off a high diving platform with a velocity of 3 m/s and lands in the water 3 s later. How high is the platform?
The acceleration of gravity is 10 m/s2.
10 m
180 m
90 m
45 m
An elevator accelerates upward at 2 m/s2. The acceleration of gravity is 10 m/s2. What is the upward force exerted by the floor of the elevator on a 50 kg passenger?
500 N
600 N
400 N
0 N
A heavy object and a light object are dropped at the same time from rest in a vacuum. The heavier object reaches the ground
after the lighter object.
before the lighter object.
at the same time as the lighter object.
More information is needed.
A ball is thrown upward. After reaching a maximum height, it continues falling back toward Earth. What was the ball's speed at its maximum height?
10 m/s
0 m/s
-10 m/s
More information is needed.
A ball is thrown upward. What is its initial vertical speed?
The acceleration of gravity is 10 m/s2 and the maximum height is 5 m. Neglect air resistance.
10 m/s
0 m/s
-10 m/s
100 m/s
A peregrine falcon dives at a pigeon. The falcon starts downward from rest and falls with free-fall acceleration. If the pigeon is 80 m below the initial position of the falcon, how long does the falcon take to reach the pigeon? Assume that the pigeon remains at rest.
The acceleration of gravity is 10 m/s2.
8 s
16 s
4 s
2 s
The frictional force between two surfaces that are at rest is called
static friction.
kinetic friction.
inertia.
mass.
The force of friction acting on a sliding crate is 100 N.
What will be the net force acting on the crate to maintain a constant velocity?
-100 N
200 N
100 N
0 N
A horizontal force of 200 N is used to pull a crate, which weighs 500 N, at constant velocity across a horizontal floor.
What is the coefficient of kinetic friction?
5
2.5
0.4
0.2
A supersonic jet flying at 100 m/s is being accelerated uniformly at 20 m/s2 for 30 s. What is its final velocity?
600 m/s
700 m/s
500 m/s
0 m/s
A car starts from rest and reaches a speed of 10 m/s in 5 s. What is its acceleration?
4 m/s2
0.5 m/s2
2 m/s2
50 m/s2
___ is the ability to do work.
Power
Energy
Force
Mass
Work and energy both have units of ____.
Joules (J)
Watts (W)
Newtons (N)
Volts (V)
A car is traveling with a kinetic energy of 10000 J. A second car is half as massive, but traveling twice as fast. What is the kinetic energy of the second car?
5000 J
40000 J
20000 J
10000 J
Calculate the speed of an 8 ×104 kg airliner with a kinetic energy of 1 × 109 J.
112 m/s
25000 m/s
158 m/s
0.013 m/s
Why do stunt doubles land on a mattress when falling off tall objects?
The mattress extends the time of the collision, increasing the force of impact.
The mattress extends the time of the collision, decreasing the force of impact.
The mattress decreases the time of the collision, decreasing the force of impact.
The mattress decreases the time of the collision, increasing the force of impact.
A 30 metric ton train moves toward the south at 50 m/s. If there were a speed limit for this train as it traveled through a city, but not a weight limit, what mass must be added to the train to slow it down to 5 m/s while at the same time keeping the momentum of 5 × 105 kg·m/s?
A metric ton is 1000 kg.
80000 kg
70000 kg
70 kg
80 kg
A golf ball of mass m is hit by a golf club so that the ball leaves the tee with speed v. The club is in contact with the ball for time T. The average force on the club on the ball during the time T is:
mT2/(2v)
mvT
mv/T
(1/2)mv2T
An object is at rest. Which of the following must be true?
There are no forces acting on it.
There is a nonzero net force acting on it.
There is only one force acting on it.
There is no net force acting on it.
If you kick a soccer ball, it will begin moving. However, it will eventually stop moving. How does this not violate Newton's first law?
Unbalanced forces are acting on the soccer ball.
It is a special soccer ball that doesn't like to move.
Gravity makes it stop.
This wouldn't happen. The ball would keep moving.
A 50 N object is falling. What is the magnitude of the net force when it falls fast enough to encounter an air resistance of 50 N?
0 N
50 N
100 N
-50 N
A small car of mass 800 kg is parked behind a small truck of mass 1000 kg on a level road. The brakes of both the car and the truck are off so that they are free to roll with negligible friction. A 100 kg woman sitting on the tailgate of the truck shoves the car away by exerting a constant force on the car with her feet. The car accelerates at 2 m/s2. What is the magnitude of the force exerted on the car?
500 m/s2
400 m/s2
1600 m/s2
2000 m/s2
When forces are balanced, the motion of the object
More information is needed.
decreases.
does not change.
increases.
The work done in lifting an object of mass m to a height of h is ___.
mgh
mv2/2
mg
mgh/2
In the 1950’s, an experimental train that had a mass of 30000 kg was powered across a level track by a jet engine that produced a thrust of 3 × 105 N for a distance of 500 m. Find the final speed of the train if it started from rest (assuming no friction).
10000 m/s
10 m/s
100 m/s
500 m/s
In the 1950’s, an experimental train that had a mass of 30000 kg was powered across a level track by a jet engine that produced a thrust of 3 × 105 N for a distance of 500 m. Find the work done on the train.
1.5 x 107 J
1.5 x 108 J
2.5 x 108 J
2.5 x 107 J
A rocket-driven sled running on a straight, level track has been used to study the physiological effects of large accelerations on astronauts. One such sled can attain a speed of 400 m/s in 2 s starting from rest. How far does the sled travel in those 2 s, starting from rest?
800 m
200 m
400 m
1600 m
If the acceleration of an object is zero at some instant in time, what can be said about its velocity at that time?
More information is needed.
It is not changing at that time.
It is zero.
It is positive.
A projectile is fired straight up at a speed of 20 m/s. Approximately how long after being fired does it take to return to its initial position?
The acceleration of gravity is 10 m/s2.
1 s
2 s
4 s
8 s
A heavy crate accidentally falls from a high-flying airplane just as it flies directly above a shiny red Camaro parked in a parking lot. Relative to the Camaro, where will the crate crash?
The crate will hit the front part of the car.
The crate will hit the Camaro.
The crate will continue to fly and will not crash.
The crate will not hit the Camaro, but will crash a distance beyond it determined by the height and speed of the plane.
A proper CER response requires a minimum of ___ sentences.
1
2
3
4
Which of the following is a good claim for the prompt below:
Based on the data provided, what is the most popular delivery service at ECHS?
The most popular delivery service can be found by looking at the data.
Uber Eats is used by 45% of ECHS students that order delivery.
Uber Eats is popular because they have good coupons and everybody likes them.
The most popular delivery service is Uber Eats.
In which section of CER is it most appropriate to introduce equations?
C
E
R
Any of the above.
In addition to explaining your logic/reasoning, what else should you do in the R section of CER?
Do math
Cite sources
Restate the claim
Whatever you want
What is the highest score you can get on the final exam if you leave both CER questions blank?
80
90
100
84
