WorksheetsPhysics Quizizz Final 2022-2023 Q2
Total questions: 65
Worksheet time: 33mins
A change in velocity is called
Inertia
Acceleration
Net Force
Speed
You are moving a dresser that has a mass of 36kg. Its acceleration is 0.5 m/s2. What is the force being applied?
72 N
35.5 N
1.8 N
18 N
Which of the following is not an acceleration?
Turning your bike around a corner
Applying the breaks as you approach an intersection
Pedaling faster to beat a red light.
Riding your bike straight down the street at a constant speed.
The law of inertia applies to
Objects at rest
Moving objects
Both
One object has twice as much mass as another object. The first object also has twice as much....
velocity
Gravitational acceleration
Energy
Inertia
All of the above
Friction is a force that always acts
Perpendicular to the object's motion
Opposite to the objects motion
In the same direction as the object's motion
none of the above
An object weighs 30N on Earth. A second object weighs 30N on the moon. Which had the greater mass?
they have the same mass
the one on the Earth
the one the moon
Not enough information to say
The mass of the dog that weighs 100 N is about
100kg
1kg
10kg
1000 kg
None of the above
Which has more mass? A kilogram of feathers or a kilogram of iron?
They have the same mass
The feathers
the iron
Consider a ball rolling down a ramp. Its acceleration...
Increases
Decreases
Is constant
The acceleration produced by a net force on an object is
Inversely proportional to the mass of the object
Directly proportional to the magnitude of the net force
In the same direction as the net force
All the above
None of the above
A girl pulls on a 10kg wagon with a constant force of 30N. What is the wagon's acceleration?
30m/s2
300m/s2
10m/s2
3m/s2
0.3m/s2
Accelerations are produced by
Accelerations
Velocities
Forces
Masses
none of the above
An apple weighs 1N. The net force on the apple when it is in free fall is
1N
9.8N
0N
0.1N
None of the above
A tennis and a steel ball the same size are dropped at the same time. Which ball has the greater force acting on it?
They both have the same force acting on the them
The steel ball
The tennis ball
A person is attracted towards the center of the Earth by a 500N gravitational force. The force with which the Earth is attracted toward the person is
Very very large
Very very small
500N
A karate chop delivers a blow of 3000N to a board that breaks. The force that acts on the hand during the feat is
3000N
cannot be determined
Less than 300N
More than 300N
A balloon is able to accelerate when air is released from the balloon. The force that propels the balloon is the force
Of the balloon on the air
Of the air on the balloon
None of the above
When the air is released from a balloon the air moves in one direction and the balloon moves in another direction. Which statement does this situation best illustrates?
what goes up must come down
For every action there is an equal and opposite reaction
The shape and size of an object affects the air resistance
The acceleration due to Earth's gravity is 9.8m/s2
Consider a ball rolling down a ramp. Its velocity...
Increases
Decreases
Is constant
A typical bathroom scale measures the...
Applied Force
Normal Force
Gravitational Force
Friction Force
If one object slides across a surface, what factors effect how much friction will occur
The weight of the object
The materials of the surface
Irregularities in the surface
All of the above
A force that is generated by an engine is called...
Applied
Thrust
Tension
Air resistance
A force that is generated by a rope or string is called...
Applied
Thrust
Tension
Air resistance
A parachute uses this force to reduce the gravitational force on and object
Applied
Thrust
Tension
Air resistance
In which of the following scenarios is work being done, according to the physics definition?
Solving an equation
lifting up a book
holding a barbell above your head
keeping a bike from falling as it rolls along a sidewalk
The "power" of a machine measures...
The work it does
The force it produces
The rate of doing work
Its strength
An object lifted 10m gains 200 J of potential energy. If the same object is lifted 20m, its potential energy gain is...
Half as much
The same
Twice as much
Four times as much
More than 4 times as much
It takes 60 J of work to push a large box 6 m across a floor. Assuming the push is in the same direction as the displacement, what is the magnitude of the force on the box?
6 N
10 N
60 N
360 N
None of these
If you do work on an object in one third of the usual time, your power output is...
One third of the usual power output
The same as the usual power output
Three times the usual power output
Impossible to predict
A 5 kg mass has 100 J of potential energy with respect to the ground. Approximately how high above the ground is the mass?
1 m
2 m
3 m
4 m
None of these
A bow is drawn so that it has 40 J of potential energy. When released, the arrow will theoretically have a kinetic energy that is
less than 40 J
More than 40 J
40 J
Impossible to predict
If you do 200 J of work in 10 seconds, your power output is...
2000 W
200 W
20 W
2 W
An object at rest may also have...
Speed
Velocity
Momentum
Kinetic Energy
Potential Energy
Mrs. Steward carries a 50 N cat 10 m across a room. Her arms exert an upward force on the cat equal to its weight. How much work is Mrs. Steward doing on the cat?
500 N
50 N
5 N
0 N
None of the above
When a car breaks to a stop, all its kinetic energy is converted to...
Stopping Energy
Potential Energy
Chemical Energy
Heat through friction
Nuclear Energy
A ball rolling down an incline plane has its maximum potential energy at...
The top
A quarter of the way down
Half way down
The bottom
Impossible to predict
A car moves 3 times as fast as another car. Compared to the slower car, the faster car has...
3 times the kinetic energy
6 times the kinetic energy
9 times the kinetic energy
12 times the kinetic energy
A shopping cart has a mass of 40 kg is pushed 10 m with a force of 20 N. How much work is done on the cart?
200 J
400 J
800 J
8000 J
A block of ice sliding down an incline has its maximum kinetic energy at...
the top
the bottom
halfway down
impossible to predict
How can you increase the power output of a machine?
Increase the work done
Increase the force with which the work is done
Decrease the time in which the work is done
All of the above
If you push an object a given distance, while applying four times the force, you do...
Twice as much work
Four times as much work
Half as much work
The same amount of work
A 10 kg ball has a height of 2 m, while a 5 kg ball has a height of 5 m. Which ball has more potential energy?
The 5 kg ball
The 10 kg ball
They both have the same potential energy
impossible to predict
Which quantity has the greatest influence on the amount of kinetic energy a large truck has while moving down the highway?
It's mass
It's weight
It's velocity
It's size
None of the above
How much power is required to raise a 30 kg crate a vertical distance of 6 m in a time of 4 seconds?
120 W
52.5 W
450 W
385 W
525 W
A ball is tied to the end of a string and swung in a circle. What force keeps the ball from flying off on a tangent?
Gravity
Normal
Tension
Friction
Applied
A car is traveling around a curve. What force keeps the car from sliding off on a tangent?
Gravity
Normal
Tension
Friction
Applied
A satellite is orbiting the Earth. What force keeps the satellite from floating off on a tangent?
Gravity
Normal
Tension
Friction
Applied
A person is standing on the inside wall of a rotating circular space station. What force keeps the person from floating off on a tangent?
Gravity
Normal
Tension
Friction
Applied
Suppose you're on a Ferris wheel at a carnival, seated 10 m from the Ferris wheels axis. If you make a complete rotation each minute, your linear speed is
10 m/min
62.8 m/min
31.4 m/min
100 m/min
not enough information is given
Consider a string with several rocks tied along its length at equally spaced intervals. You whirl the string overhead so that the rocks follow circular paths. Compared to a rock in the middle of the string, a rock at the outer end moves
Faster
slower
at the same linear speed
not enough information given
Suppose the circumference of a bicycle wheel is 2 meters. If it rotates at 1 revolution per second when you are riding the bicycle, then your speed will be
3 m/s
2 m/s
1 m/s
3.14 m/s
6.28 m/s
Consider a rotating donut-shaped space habitat where living quarters are on the inside surface farthest from the axis. If the rotational speed of the habitat increases, the apparent weight of people inside
Is always zero
Decreases
Increases
Stays the same
Horses that move with the fastest linear speed on a merry-go-round are located
near the outside
near the center
anywhere, because they all move at the same speed
The gravitational field best suited for humans living in an outer space colony is
three-quarters g
g
one-half g
zero
one-quarter g
Your weight on the surface of Planet X is 20 N. What is your weight at a distance of 2 radii from the center of Planet X?
20 N
10 N
5 N
2.5 N
Your weight on the surface of Planet X is 20 N. What is your weight at a distance of 3 radii from the center of Planet X?
0.625 N
2.22 N
2.5 N
5 N
Your weight on the surface of Planet X is 20 N. What would your weight be if the planet had the same size, but twice as much mass?
10 N
20 N
5 N
40 N
Your weight on the surface of Planet X is 20 N. What would your weight be if the planet had the same size, but half as much mass?
10 N
20 N
5 N
40 N
An object is travelling in a circle with a constant speed. The velocity vector always points...
Toward the center of the circle
Away from the center of the circle
Tangential to the circle
Upward from the plane of the circle
An object is travelling in a circle with a constant speed. The acceleration vector always points...
Toward the center of the circle
Away from the center of the circle
Tangential to the circle
Upward from the plane of the circle
An object is travelling in a circle with a constant speed. The force vector always points...
Toward the center of the circle
Away from the center of the circle
Tangential to the circle
Upward from the plane of the circle
An object rotates in a circle. Its period is...
The amount of time to spin 1 degree
The number of degrees spun in 1 second
The number of rotations that occur in 1 second
The amount of time it takes for one rotation
When near a large mass, such as a planet, a standard clock will run...
faster
slower
the same
backwards
According to Einstein, gravity is caused by...
atomic particles called gravitons
a god like deity
a force
the warping of time
