WorksheetsPHYSICS REVIEW QUIZ - WEEK FOUR - 2023
Total questions: 64
Worksheet time: 32mins
Which of the following best describes Hooke's Law in physics?
The law that states that energy cannot be created or destroyed, only converted from one form to another.
The law that describes the relationship between an object's mass, acceleration, and the net force acting on it.
The law that governs the behavior of ideal gases at constant temperature, stating that the volume of a gas is inversely proportional to its pressure.
The law that states the force required to extend or compress a spring is directly proportional to the displacement of the spring from its equilibrium position.
A weight of 18 newtons is hung on a spring which has an unloaded length of 24 cm. What is the value of the spring's spring constant?
6 N/m
7.5 N/m
75 N/m
432 N/m
A 0.40 kg object is attached to a spring with spring constant of 160 N/m so that the object is allowed to move on a horizontal frictionless surface. The object is released from rest when the spring is compressed 0.15 m. Find its maximum acceleration.
60 m/s^2
45 m/s^2
25 m/s^2
54 m/s^2
A spring is hung from a ceiling, and an object attached to its lower end stretches the spring by a distance of 5.00 cm from its un-stretched position when the system is in equilibrium. If the spring constant is 47.5 N/m, determine the mass of the object
0.242 kg
2.42 kg
0.245 kg
2 kg East
A spring has a spring constant of 65.5 N/m and it is stretched with a force of 15.3 N. How far will it stretch?
21 cm
22 cm
23 cm
24 cm
When a force of 2.5 N is attached to a spring, it's length increases by 16 cm. What is the spring constant of the spring?
14.3 N/m
15.2 N/m
15 .6 N/M
18.5 N/M
The point at which a spring is permanently deformed is called the
resultant force
restoration limit
rarefaction force
elastic limit
When a force of 7.5 N is attached to a spring, it's length increases by 8 cm. What is the weight of the object that would change the length of the spring by 90 cm?
8.5 N
7.75 N
9.8 N
10 N
With the equation F = ke, what does e stand for?
elevation
extension
elaborate
energy
One spring has k = 5N/m another has k = 10N/m. Which spring is the easiest to stretch?
They are the same
The 5 N/m one
The 10 N/M one
Not enough information is given
If the spring constant of a spring is 80 N/m and it is compressed by 0.2 meters, what force is required to compress the spring?
8 N
0.25 N
16 N
0.4 N
If there is a balanced net force acting on an object, the object will
accelerate
slow down
speed up
move at a constant velocity
What additional force acting on the object will establish equilibrium?
4 N to the left
4 N to the right
16 N to the left
16 N to the right
There are four forces acting on the object. What will the object do?
Move at a constant speed to the right
Accelerate to the right
Accelerate to the left
None of the above
Which object has the largest inertia?
200 kg at rest
5 kg object moving at 3m/s
2kg object moving at 125m/s
7kg object accelerating at 9.81m/s^2
Which vector represents the friction force?
A
B
C
D
A
B
C
D
If the force acting on an object is doubled and the inertia of the object is doubled, it's acceleration will be
doubled
half of the original
quadrupled
remain the same
If the force acting on an object were doubled and it's inertia remained the same, it's acceleration would be
doubled
half of the original
quadrupled
remain the same
The Stanley Cup is sitting on a table. If the Stanley Cup has a weight of 1984 Newtons, what is the magnitude of the normal force acting on the cup?
0 N
20 N
1984 N
None of the above
If an object is experiencing a net force of 40 N and has a mass of 5 kg, what is its acceleration?
8 m/s²
35 m/s²
45 m/s²
200 m/s²
What is the potential energy of Jayden if he has a mass of 30 kg and is standing on a 5 m diving board?
1600 J
1472J
1280 J
1580 J
What is the formula for calculating kinetic energy?
KE = 1/2m * g
KE = 1/2 m * v^2
KE = 4.9m * h
KE = F * d
Which item below has the most thermal energy?
Regular size ice cube
A match
A fresh grande (large) cup of Starbucks Coffee
An extra large Slurpee from 7-11
Which of the following is NOT a measure of temperature?
Fahrenheit
Kelvins
Celsius
Joules
What is the property of an object that enables it to do work?
Energy
Velocity
Acceleration
Sum of vectors
How much force is applied if a machine, driven by Kamoon, completes 100 J of work by pushing a load of dirt for 25 m?,
0 N
0.25 N
4 N
2500 N
A tower crane, operated by Harman, lifts a load of 1200 kg a vertical distance of 35 m in 11.5 seconds at a constant velocity. What is the power output of the crane?
13 200 Watts
3864 Watts
36 000 Watts
104 Watts
Ekam is playing basketball and is late for class. He tells his friends he must go to Physics class. Before he goes, his friends ask him to answer the following question: What is the kinetic energy of a 0.22 kg ball moving at 22 m/s?
44 Joules
53.25 Joules
440 Joules
532.5 Joules
Jeeya likes to drink water out of her fancy Starbucks cup! She always wants to have fresh water for class. To make sure she never runs out, she has 500 000kg of water stored at a height of 1km. What is it's potential energy of her water?
9.81 X 10^9
4.90 X 10^9
1.2 X 10^9
5.0 X10^9
How much work does Gurneet do if she exerts 45.0N of force while pushing a 15 kg block 15 m?
225 Joules
525 Joules
675 Joules
1025 Joules
How much work is required to lift Jasnoor, a 75.0 kg person, up 35 m?
14 715 Joules
25 751 Joules
29 430 Joules
26 250 Joules
How much work is done by a 73 kg boy named Ronit if he speeds up from 8.0 m/s to 17 m/s?
4456 Joules
5063 Joules
6424 Joules
8212 Joules
A 40 kg object is lifted vertically at a constant velocity of 6.50 m in 5 seconds by Jhanvi. What is Jhanvi's approximate power output?
465 Watts
490 Watts
510 Watts
525 Watts
A 990 kg elevator is pulled up at a constant velocity of 1.0m/s by a 20.0 kW motor. Marianna calculates the efficiency of the electric motor and should come up with what answer?
38.6% Efficiency
83.4% Efficiency
67.6% Efficiency
48.5% Efficiency
Subeg wants to know how much power does a 1200W motor produce if it is deemed to be 43% efficient. The correct answer Subeg is looking for is?
1200W
764W
516W
465W
According to Huen, who knows a lot of interesting things, which of the following is not an example of a simple machine?
Screw
Lever
Wedge
Block
Jamie completed all her readings for physics class. Which of the following machine did she discover is NOT an example of a simple machine used by indigenous people in Canada?
Paddle
Hammer
Bow
Carving tools
How much force would Jasreet require to lift a 500 kg stone using an ideal lever whose resistance arm is 10.0 cm and whose effort arm is 2.00 m?
225 N
245 N
265 N
275 N
Arlen exerts a force of 225 N on a lever to raise a 1250 N rock a distance of 0.64 m. If the lever is frictionless, how far did Arlen have to move her end of the lever?
D) 3.56 m
The moving particle in electricity is called a(n)
electron
proton
neutron
atom
Which of the following statements is true.
A resistor decreases the current of electricity and it's resistance is measured in volts.
A lightbulb uses the current in an electrical system. The power of a lightbulb is measured in ohms.
A resistor decreases the current of electricity and it's resistance is measured in ohms.
A lightbulb uses the current in an electrical system. The power of a lightbulb is measured in volts.
The device that Parneet would use use to measure current is called:
A flux capacitor
A volt meter
An ammeter
A stopwatch
Isha likes powerful things. She decides to investigate the power of small appliances. What is the power of a microwave she finds that operates at a potential difference of 120 V for 30 s if it uses 34200 J of energy?
1000 W
1140 W
1500 W
1640 W
What is the power of Tiya's toaster that draws 14 A of current and a voltage of 120 V?
1140 W
1500 W
1680 W
None of the above
Violin wants to calculate the current in a lightning discharge if 30 C of charge moves through a voltage of 1 x 10^6 V in 4.0 x 10^-2 s. What should her answer be?
500 Amps
750 Amps
900 Amps
100 Amps
Pratham is playing with electricity after a long day playing outside in traffic. He decides to learn about circuits. He discovers that in a parallel circuit, as lights are added, the voltage in the circuit will
Increase
Remain the same
Decrease
Fluctuates throughout the circuit
If Jasreet, Armandeep, Gunoor, Ashleen, Komalpreet, and Divya added additional batteries in a series circuit, what would happen to the brightness, the voltages, and the currents?
The lights get brighter, the voltage increases and the current increases.
The lights do not get brighter, the voltage increases and the current increases.
The lights get brighter, the voltage remains the same and the current increases.
The lights get brighter, the voltage increases and the current remains the same.
A 50 kg object is lifted to a height of 10 meters. What is the potential energy of the object at this height?
4900 J
5000 J
4500 J
4800 J
A spring with a spring constant of 30 N/m is compressed by 0.2 meters. What is the elastic potential energy stored in the spring?
0.6 J
0.3 J
0.5 J
0.4 J
How high can a 1200W motor lift a 12kg box in 14 seconds if it is 55% efficient?
The motor can lift the 12kg box to a height of 46.8 meters.
The motor can lift the 12kg box to a height of 85.27 meters.
The motor can lift the 12kg box to a height of 54.6 meters.
The motor can lift the 12kg box to a height of 78.6 meters.
How much work is done by a 50kg man if he speed up from 8m/s to 12m/s?
1200 J
1500 J
2000J
2400 J
A spring with spring constant 2N/cm is subject to a force of 10N. What is the extension of the spring?
20 cm
5 cm
2 cm
10cm
With the equation F = ke, what does e stand for?
spring constant
force
length
extention
What are the units of work done?
Watts
Joule
Newton
Mulligan
The kintetic energy of a mountain bike is reduce from 400J to 0J by the brakes over 2m. What is the force of Friction causing the bike to stop?
200 N
400N
0 N
800 N
One spring has k = 5N/m another has k = 10N/m. Which spring is the easiest to stretch?
The 5N/m one
The 10 N/m one
They are the same.
It depends
No matter the speed, the WORK is the same.
True
False
Two wrongs make a right
2kg East
A brand new Corvette has approximately 670horsepower. Approximately how many Watts is this?
500 000
480 000
550 000
440 000
What are the units for ENERGY?
Watts
Joules
Newtons
Meters per Kg
Which statement is true about something being work?
It must be in the same direction as the force applied.
It does not matter if there is movement or not.
It is the same thing as power
Work is awesome! Everyone loves work!
Please walk 2 kg East!
