WorksheetsFormula Review
Total questions: 70
Worksheet time: 1hrs 15mins
Name
Class
Date
1.
Bill jogs 400 meters to Andy's house, turns around, and runs 400 meters back home. He does so in 267 seconds. What is Bill's average speed?
a)
about 3 m/s
b)
about 1.5 m/s
c)
0
d)
about 4 m/s
2.
What is the formula to calculate speed?
a)
S = t/d
b)
S = d/t
c)
S = d x t
d)
S = t x d
3.
A runner races in the 100 meter dash. It takes her 10 seconds to finish. What is her average speed?
a)
10 m/s
b)
1000 m/s
c)
100 seconds
d)
10 seconds
4.
Dave runs a 400 m race with a speed of 4 m/s. What time will it take him to finish the race?
a)
400 minutes
b)
100 minutes
c)
100 seconds
d)
.25 seconds
5.
Which of the following is a unit of time?
a)
sec
b)
mi
c)
m/s
d)
km
6.
Which of the following is a unit of speed ?
a)
sec
b)
mi
c)
m/s
d)
min
7.
Which of the following is a unit of distance ?
a)
miles/hr
b)
hr
c)
km
d)
min
8.
A train travels 25 km in .5 hrs. How fast is the train going?
a)
25 miles/hr
b)
5 miles/hr
c)
125 km/hr
d)
50 km/hr
9.
A different runner trains for a marathon for 6 months by eating nothing but bags of french fries from McDonalds. They run a 10 meter dash in 100 seconds. What is their speed?
a)
0.01 m/s
b)
0.1 m/s
c)
1 m/s
d)
10 m/s
10.
If Steve throws the football 50 meters in 3 seconds, what is the average speed (velocity) of the football?
a)
0.06 m/s
b)
16.7 m/s
c)
150 m/s
d)
53 m/s
11.
If it takes Heather 3 seconds to run from the batter's box to first base at an average speed of 6.5 meters per second, what is the distance she covers in that time?
a)
19.5 m
b)
0.46 m
c)
2.2 m
d)
3.5 m
12.
If Mike rides his motorcycle at an average speed of 20 m/s for 500 seconds, how far does he ride?
a)
10,000 m
b)
25 m
c)
0.04 m
d)
250 m
13.
A golf ball accelerates off a tee at 15m/s2, changing its velocity from 0m/s to 50 m/s down the fairway. How long did it take the golf ball to accelerate?
a)
750 seconds
b)
35 seconds
c)
0.3 seconds
d)
3.3 seconds
14.
A ball of clay is thrown at a wall at a velocity of 28.0 m/s. After it hits the wall, it takes 0.020 s to stop. What is the acceleration of the clay when it hits the wall?
a)
1400 m/s2
b)
-1400 m/s2
c)
0.56 m/s2
d)
-0.56 m/s2
15.
The picture of the position vs. time graph shows an object that is...
a)
accelerating/speeding up
b)
moving at a constant speed
c)
not moving
d)
accelerating/slowing down.
16.
Acceleration is defined as the CHANGE in
a)
time it takes for one place to move to another place.
b)
velocity of an object.
c)
distance divided by the time interval
d)
velocity divided by the time interval
17.
Why does a car accelerate as it round a corner at a constant speed?
a)
Its direction changes
b)
It doesn't
c)
It slows down
d)
Its speeds up
18.
Which graph shows the object standing still?
a)
A
b)
B
c)
C
d)
D
19.
The SI unit for acceleration is
a)
mph
b)
ft/sec2
c)
m/s2
20.
A negative acceleration means that your object is _____.
a)
not accelerating
b)
not moving
c)
speeding up
d)
slowing down
21.
A roller coasters accelerates from an initial velocity of of 6.0 m/s to a final velocity of 70 m/s over 4 seconds. What's the acceleration?
a)
24 m/s2
b)
18 m/s2
c)
16 m/s2
d)
16 m/s
22.
A car starts from rest at a stop light and reaches 20 m/s in 3.5 s. Determine the acceleration of the car.
a)
2.2m/s2
b)
7.0m/s2
c)
5.7m/s2
d)
70m/s2
23.
Acceleration only takes place when things speed up.
a)
True
b)
False
24.
The force that pulls things toward earth.
a)
Speed
b)
Gravity
25.
Force depends on
a)
Force
b)
mass
c)
acceleration
d)
mass and acceleration
26.
The SI Unit of force is
a)
Pascal
b)
Meter/second
c)
Newton
d)
kg
27.
8 N to the left , and 4 N to the right. Find the net force. Is this balanced?
a)
12 N Right; No
b)
4 N Left; No
c)
12 N Right; Yes
d)
4 N Left; Yes
28.
Find the net force: 15 N to the right, and another 15 N to the right.
a)
0 N Right
b)
0 N Left
c)
30 N Left
d)
30 N Right
29.
You and your friend are playing tug of war. Your friend pulls with a force of 55 N to the right. You pull with a force of 65 N to the left. What is the net force on the rope?
a)
10 N left
b)
20 N
c)
10 N right
30.
What is the formula for work?
a)
W=F*D
b)
W=F/D
c)
W=F-D
d)
W=F+D
31.
Two people use 1000 N to push a box 1 m. How much work is done?
a)
0.001 J
b)
1000J
c)
0.001N
d)
1000N
32.
Two people shove on a wall with 100 N. The wall doesn’t move. How much work is done?
a)
100J
b)
100N
c)
0J
d)
0N
33.
200 J of work are done to a pile of gravel. The gravel is moved 20 m. How much force was needed to move the gravel?
a)
4000J
b)
10N
c)
0.1N
d)
No work is done
34.
A hunter drags his kill using 500 N. The work done to the deer is 1000 J. How far was the deer dragged?
a)
2m
b)
0.5m
c)
500000J
d)
1500J
35.
Arnold uses one hand to lift 400 N 0.5 m ten times. How much work did he do with his muscles?
a)
400J
b)
200J
c)
2000J
d)
2J
36.
How much force is needed to do 100 J moving something 10 m?
a)
1000J
b)
10J
c)
10N
d)
0.1m
37.
How many newtons are needed to do 100 J of work in 25 m?
a)
2500N
b)
4N
c)
0.25N
d)
125N
38.
200 N are necessary to move a rock, in which motion 400 J of work is done. How far did the rock move?
a)
2m
b)
0.5m
c)
600m
d)
200m
39.
Potential or kinetic?
Stretched bow and arrow?
Stretched bow and arrow?
a)
kinetic
b)
potential
40.
At which point(s) on the roller coaster is the gravitational potential energy at its maximum?
a)
A
b)
B
c)
C
d)
D
41.
At which point(s) on the roller coaster is the kinetic energy at its maximum?
a)
A
b)
B
c)
C
d)
D
42.
What is the difference between calculating power and work?
a)
Power takes into account the time it takes to complete a task
b)
Work takes into account the time it takes to complete a task
c)
Power is force/area
d)
Work is force/area
43.
Gravitational potential energy depends on the ________ and ________ of the object.
a)
Height and mass
b)
Friction and movement
c)
Mass and Movement
d)
Height and Friction
44.
A girl weighs 400 N. She runs up a flight of stairs of height 5 m in 4 seconds. Her power is:
a)
320 W
b)
400 W
c)
500 W
d)
2 000 W
45.
Work is the product of?
a)
Speed and force
b)
Force and distance
c)
Power and force
d)
Motion and force
46.
Which requirements are necessary in order for a force to do work on an object?
a)
The Speed and force must be equal
b)
The force and distance must act in opposite directions
c)
Some of the force must act in the same direction as the object moves
d)
Power must equal work x time
47.
Power is equal to work divided by
a)
time
b)
force
c)
distance
d)
mechanical advantage
48.
No machine can be 100% efficient because of
a)
thermal energy
b)
waste energy
c)
convection energy
d)
friction
49.
Which is not considered a simple machine?
a)
the pump
b)
the wheel & axle
c)
the wedge
d)
the screw
50.
A kid applies a force of 70 N to a ball over 1.1 meters. How much work did he do on the ball?
a)
77 J
b)
7.7 J
c)
0.7 J
d)
770 J
51.
You do 90 joules of work in 30 seconds. How much power have you generated?
a)
30 watts
b)
3 watts
c)
120 watts
d)
270 watts
52.
You move an 8-newton weight five meters in 4 seconds. How much power have you generated?
a)
160 watts
b)
10 watts
c)
6.4 watts
d)
17 watts
53.
What kind of energy does a moving baseball have?
a)
Electrical
b)
Magnetic
c)
Chemical
d)
Mechanical
54.
Energy from the sun is known as.........
a)
hydroelectric energy
b)
geothermal energy
c)
solar energy
d)
wind energy
55.
What size resistor would produce a 3 Amp current flow with a 12 Volt battery
a)
1 Ohm
b)
3 Ohms
c)
4 Ohms
d)
12 Ohms
56.
What is current measured in?
a)
Ω (Ohms)
b)
V (Volts)
c)
A (Amps)
d)
W (Watts)
57.
What is resistance measured in?
a)
Ω (Ohms)
b)
V (Volts)
c)
A (Amps)
d)
W (Watts)
58.
Electricity that flows in a closed path is called a
a)
path
b)
current
c)
circuit
d)
light
59.
What types of charges attract?
a)
Positive and Positive
b)
Positive and Neutral
c)
Negative and Neutral
d)
Positive and Negative
60.
What is the Voltage of a circuit that has a resistance of 5 Ω and a current of 2 A?
a)
25 V
b)
10 V
c)
2.5 V
d)
0.4 V
61.
The mathematical relationship among Voltage, Current, and Resistance
a)
Faraday's Law
b)
Tesla's Law
c)
Edison's Law
d)
Ohm's Law
62.
Current times Resistance equals
(I X R)
(I X R)
a)
Power
b)
Voltage
c)
Amperage
d)
Ohm
63.
If the battery produced 12.6 Volts what would be the current flow for a 6 Ohm resistor?
a)
2.1 Amps
b)
2.4 Amps
c)
1.71 Amps
d)
15 Amps
64.
How many Volts would we need to produce a current flow of 8 Amps through a 6 Ohm resistor
a)
12 volts
b)
24 volts
c)
1.3333
d)
48 volts
65.
This circuit has a 24 volt battery and the resistor is 8 ohms. How many amps are running through the circuit?
a)
3 Amps
b)
192 Amps
c)
2 Amps
d)
4 Amps
66.
Water has a specific heat of 4184 J/KgºC. Wood has a specific heat of 1760 J/KgºC. What material needs more energy to raise the temperature 1ºC
a)
Wood
b)
Water
c)
Both are the same
67.
A 15.75-g piece of iron absorbs 1086.75 joules of heat energy, and its temperature changes from 25°C to 175°C. Calculate the specific heat capacity of iron.
a)
0.46 J/gxoC
b)
1.654 J/gxoC
c)
2,567,446.875 J/gxoC
68.
How many joules of heat are needed to raise the temperature of 10.0 g of aluminum from 22°C to 55°C, if the specific heat of aluminum is 0.90 J/gx°C?
a)
297 Joules
b)
0.003 Joules
c)
297 J/gx°C
d)
0.003 J/gx°C
69.
A 0.3 g piece of copper is heated and fashioned into a bracelet. The amount of energy transferred by heat to the copper is 66,300 J. If the specific heat of copper is 390 J/g 0C, what Is the change of the copper's temperature?
a)
566.7 °C
b)
77,571,000 Joules
70.
The frequency of violet light is 7.5x1014 Hz and light travels at a speed of 3.0*108 m/s. What is its wavelength?
a)
4.0x10-7 m
b)
4.0x107 m
c)
2.25x1023m
d)
2.25x1023 Hz
100 %
