Physics Final Exam Review Sheet
Name_____________________________________________
Information about the final exam
o All formulas on this review sheet are given on the final exam.
o Students may make a 3 x 5 notecard to use during the final, which they will turn in upon completion of the exam.
o Bring a calculator to the exam.
o Textbooks are due on or before the final exam.
Chapters 2 and 3: Motion
Key formulas:
∆x = vi∆t + ½ a∆t2
v = d/t
vf2 = vi2 + 2a∆x
vf = vi + a∆t
1.
Draw of d/t graph of the following motion. SPONGEBOB walks 20 m forward to the grill and then 10 m back to the freezer
and forward 10 m to the grill and then back 20 m to the serving window.
2.
What does the slope of a d/t graph represent? of a v/t graph?
3.
What does the area under the curve of a v/t graph represent? of an a/t graph?
4.
Betty Rubble’s car’s velocity increases from 4 m/s to 36 m/s in 4 seconds. What is its average acceleration?
5.
Maverick’s plane is flying at 145 m/s and is accelerated uniformly at the rate of 23.1 m/s 2 for 20 seconds. What is the final
velocity of the plane?
6.
Luke Skywalker fires his laser at Darth Vader. The laser can acquire a velocity of 3 x 108 m/s in only 0.2 m. What is the
acceleration of the laser from the light saber?
7.
Bugs Bunny throws a stone straight up at 40 m/s. How high does the stone go? How long is it in the air?
8.
The Roadrunner drops a brick from an 80 m cliff. How long does it take to hit the ground? What is the velocity of the brick
upon impact with the ground?
9.
Elmer Fudd throws a ball horizontally at 20 m/s from the top of a 30.0 meter building. How long does it take to hit the
ground? How far from the base of the building does the ball land?
10. Tweedy Bird flies 2 km/hr to the north. The wind blows him toward the east at 1.5 km/hr. what is Tweedy’s resultant
velocity (include the angle). Solve using trig.
11. Arnold kicks a football at an angle of 35⁰ at a velocity of 12 m/s. What are the horizontal and vertical components of the
football’s velocity? How long is the football in the air? How far horizontally does the football travel? What is the maximum
height that the football reaches?
Chapter 4: Forces and Laws of Motion
Key formulas
F = ma
W = mg
Fnet = Fgo - Fstop
Ff = μmg
1.
State Newton’s 3 laws of motion.
2.
Force can only be generated when an object is being _______. An object at a _____________ velocity has NO force acting
on it.
3.
What is the mass of a Bessie the cow that has a weight of 25000 N?
4.
Jeff Gordon’s 500 kg car experiences a force of 3000 N. What is the acceleration of the car?
5.
What is the force required to stop a 2 kg ball in 5 seconds if the ball is rolling initially at 15 m/s?
6.
How do your mass and weight compare on the earth and on the moon?
7.
The coefficient of friction for ice skates on ice is .09 and the mass of a skater is 50 kg. What frictional force opposes the
motion of the Kristy Yamaguchi as she skates?
8.
Calculate the acceleration of the block on the table in the following diagram.
9.
Calculate the acceleration of the masses in the following diagram.
Chapter 5: Work and Energy
Key formulas
W = Fd
P = W/t
PE = mgh
KE = ½ mv2
Etot = PE + KE
1.
Yogi lifts a 25 kg picnic basket from the ground to a 1.25 m picnic table. How much work does Yogi do? I f Yogi performs
this task in 1.5 seconds, what power is generated by the loveable bear?
2.
What is the speed of Wilma’s car if it has a mass of 1500 kg and possesses 750000 J of kinetic energy?
3.
A building is 40 m high. How much potential energy does a 0.5 kg ball have that is about to be dropped from the top of the
building? What is the velocity of the ball upon impact with the ground?
4.
How much work is done by a light 15 W lightbulb that is illuminated for 2 hours?
Chapter 6: Momentum
Key formulas
p = mv
P1 + P2 = P1 + P2
mv = ∆p = Ft
P1 + P2 = (m1 + m2)Vf
1.
A force of 25 N is applied to a 15 kg object for 3 seconds. What is the impulse given to the object? What is the change in
the velocity of the object?
2.
A 20 kg ball traveling at 5 m/s hits a 10 kg ball traveling in the opposite direction at –2 m/s. After the collision, the two
objects stick together. What is the velocity of the combination after the collison?
3.
Elroy, mass 85 kg, is in space holding a 20 kg bag of dog food for Astro. Elroy throws the bag at 10 m/s. What is the recoil
velocity of Elroy?
4.
George is driving at 10 m/s in a 1000 kg rocket can when he hits Mr. Spacely’s car of mass 1500 kg that is at rest. It the cars
stick together after the collision, what is the combined velocity of the wreckage?