Physics Final Review:
Name:______Date:______Period:_____
Kinematics:
1)Find the distance of a car traveling at 100 m/s travels in 5 seconds.
2)Find the acceleration of a car that accelerates from 10m/s to 50m/s in 10 seconds.
3)How far does a rock drop in 5 seconds?
4)How fast is the rock traveling after 5 seconds of free fall?
5)Which objects fall the fastest in a vacuum, a leaf or rock?
The following graph represents the motion of a person walking.
6)Find the velocity of the person for the first 5 seconds of walking:
7)What is the average velocity for the entire trip?
8)What is the instantaneous velocity for the first 3 seconds?
9)What is the difference between average and instantaneous velocity?
10)Between what points is the object moving the fastest in the positive direction?
11)Between what points is the object slowing down?
12)Between what points is the object traveling with a negative velocity?
13)Find the velocity between points A and B:
14)Find the velocity between point D and E:
Newton’s Laws:
15)Write Newton’s 3 laws of Motion:
16)When a large and a small object collide, which will exert the greatest force?
17)Find the acceleration of a 1000kg rocket that is ascending vertically upwards with a thrust from the engines of 20,000N.
18)A 25 kg block is pulled across a floor with a 95 newton force. If the floor exerts a 20 N frictional force, find the acceleration of the block.
19)A feather and a brick are dropped at the same time in a vacuum. Which hits the ground first and why?
20)If you were placed on the moon, would your mass change? Would your weight change?
21)What is the weight of a 100 kg person?
Energy:
22)What is the difference between power and energy?
23)A cart has a force of 100N accelerate it for 5 meters. What is the work done on the car? How much power is consumed if this happens in 2 seconds?
24)A person carries a 50N block for 20 meters. Find the work that is done if they travel at a constant velocity.
25)A 50 kg rock is dropped from a height of 5 meters. What is the rock potential energy? What is the velocity of the rock when it hits the ground?
26)For the diagram bellow, find the missing values for each location
Momentum:
27)Describe the relationship between the time it requires to stop an object and the force required to stop it.
28)Find the initial momentum of the 60kg guy in the energy problem on the last page.
29)A 100 kg cannon shoots a 10 kg cannon ball. If the cannon recoils backwards at 2 m/s, find the speed of the cannon ball.
30)A 2 kg bullet traveling 100 m/s hits a 20 kg wooden block and sticks. Find the velocity of the bock and the embedded bullet after impact.
31)The following two cars collide. Find the final velocity of the second car after the collision.
Circular Motion:
32)Centripetal acceleration of is always in the direction of:______
33)Find the centripetal acceleration a car traveling at 30 m/s around a bend that has a radius of 100 meters.
34)Find the centripetal force of 1000kg racecar traveling at 120m/s while traveling in a circular path with a radius of 100 meters.
35)What is torque? What affect the torque on an object?
36)Find the force required to the following beam in equilibrium.
37)How does the centripetal acceleration of a satellite traveling around the Earth relate to the gravitational force on it?
38)A satellite travels around the earth at a specific orbital speed. According to Newton’s Universal Law of Gravity, what would happen to the centripetal acceleration if:
a)The mass of the planet stayed the same and the radius doubled:
b)The mass of the Earth doubled:
c)The mass of the satellite doubled:
Static Charge:
39)What is the difference between the electron and proton?
40)Draw the picture of an atom and label its parts.
41)What cause an object to have a charge?
42)Describe how to charge by contact.
43)Draw the electric fields around the following objects:
44)What happens to the electric field strength if the distance from the object is doubled?
45)A +2C charge and a +4C charge are 10 meters apart. Using Coulombs Law, find the force between them.
46)What is a capacitor?
47)Find the charge stored on a 2 Farad capacitor that is charged to 2 volts.
Parallel and Series Circuits:
48)A long wire originally has a resistance of 3 ohms. It is then cut into 3 equal size pieces and then connected in parallel. What is the new resistance of the wires together?
In the following circuit, each resistor has the same resistance. Use this illustration to answer the next three questions.
49)Which part of the circuit will have the greatest resistance?
50)What part of circuit will have the most current? Why?
51)If the single resistor feels 4 volts, what is the voltage across each of the top two resistors?
52)A light bulb has 110 volts applied to it and produces 50 watts of power. What is the current that passes through the lightbulb?
53)For the series circuit, find the total resistance of it.
54)Find the current passing through each resistor.
55)Find the voltage across each resistor.
The following parallel circuit has 100 volts applied to it. Use this information to answer the next 3 questions.
56)Find the total resistance.
57)Find the current passing through each resistor.
58)Find the total current passing through the circuit.
Magnetism:
59)Where do magnetic fields come from?
60)Draw the magnetic field on the object below:
61)Draw the direction of the magnetic field around the following object:
62)The following two charges go through the magnetic field (going into the paper). Draw the direction of the force on the charges.
63)Draw the direction of the magnetic field in the following solenoid for positive charge flow.
64)Find the force created on a 2 meter wire that has 3 amps of current passing through it while in a 2T magnetic field.
65)Describe how to create current in a wire.
66)What does a transformer do?
67)Find the output voltage of a transformer that has 115ac applied to a primary set of coils with 1000 loops and a secondary set of coils with 2000 loops.
Waves:
68)What affects the period of a pendulum?
69)Find the frequency of a pendulum that is 5 meters long:
70)What is the difference between a compression and transverse wave?
71)Which travels faster in air, a 100hz frequency or a 200hz frequency?
72)Describe what the difference between constructive and destructive interference are.
73)The distance between the tree and the person is 18 meters. Use this to find the following:
a)Label each node and anti-node on the string.
b)What is the wavelength of the wave?
c)If the wave speed is 24m/s, find the frequency of the wave.
74)What is a beat?
75)What is the Doppler affect?
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