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WorksheetsPhysics Quizizz Final 2022-2023 Q1
Total questions: 56
Worksheet time: 28mins
1. In addition to time, which of the following must be used for a more complete description of the average acceleration of an object?
Mass
Displacement
Velocity
None of these
Velocity is...
The rate of change of acceleration
The rate of change of displacement
The rate of change of distance
The rate of change of speed
What is the acceleration of an object moving at constant velocity?
2 m/s2
1 m/s2
0 m/s2
0.8 m/s2
When velocity is positive and acceleration is positive, what happens to the object’s motion?
The object slows down
The object speeds up
Nothing happens to the objects motion
The object remains at rest
What is the difference between a vector quantity and a scalar quantity?
A scalar has a magnitude and direction and a vector has only a magnitude
A vector has a magnitude and direction and a scalar has only a magnitude
A scalar has a direction and a vector has a magnitude
None of the above
A bird flies 2 m/s. How far has the bird traveled after 1 min?
5 m
12 m
120 m
300 m
A toy car is given an initial velocity of 5 m/s and experiences a constant acceleration of 3 m/s2. What is the final velocity after 5 seconds?
20 m/s
10 m/s
9 m/s
5 m/s
Which of the following is a vector quantity?
Velocity
Acceleration
Displacement
All of the above
What is the speed of an object at rest
0 m/s
1 m/s
9.8 m/s
10 m/s
A dolphin swims 1.2 km/hr. How far has the dolphin travelled after 0.525 hr?
1.1 km
2.5 km
0.63 km
3.7 km
When the velocity is positive and the acceleration is negative, what happens to the objects motion?
The object slows down
The object speeds up
Nothing happens to the object
The object remains at rest
A toy car is given an initial velocity of 5m/s and experiences a constant acceleration of 2m/s2 for 6 seconds. What is the final velocity of the car?
10 m/s
12 m/s
16 m/s
17 m/s
Acceleration due to gravity is also called...
negative velocity
displacement
free fall acceleration
instantaneous velocity
A coin released from rest from the top of a tower hits the ground after 3.1 seconds. What is the speed of the coin as it hits the ground?
15 m/s
21 m/s
31 m/s
39 m/s
What is the difference between the displacement of a traveler who takes a train from San Francisco to Los Angeles and the displacement of a traveler who flies from Los Angeles to San Francisco
They are the same
Displacement of the second traveler is greater
They are of equal magnitude but opposite sign
None of the above
A baseball catcher throws a ball straight up and catches it in the same spot. A what point in the balls trajectory does it experience a velocity of zero.
Midway on the way up
At its peak height
The instant it leaves the catchers hand
The instant before it arrives in the catchers mitt
A ball is thrown straight up into the air. As the ball travels upward, the speed of the ball
increases
decreases
stays the same
behaves randomly
A BASE jumper jumps off a building. As the jumper falls downward, his speed will.
increase
decrease
stay the same
behave randomly
A car travels 40 mph. How long will it take the car to travel 160 miles?
1 hour
2 hours
3 hours
4 hours
A car is travels 100 miles in 2 hours. What is the cars speed?
2 mph
25 mph
50 mph
200 mph
For an object tossed straight up into the air, the velocity at the top of trajectory is
Zero
Vx
Vy
-9.8m/s2
If the object is thrown at an angle of 30o to the horizontal, the velocity at the top of the trajectory is
Zero
V0x
V0y
-9.8m/s2
What direction is acceleration in projectile motion?
Left
Right
Up
Down
Which would hit the ground faster in the absence of air resistance, a feather or a bowling ball?
The feather
The bowling ball
They both hit the ground at the same time
they are suspend in the air
When velocity is negative and acceleration is negative, what happens to the object's motion?
a. The object slows down
b. The object speeds up
c. Nothing happens to the object
d. The object remains at rest
What type of movement is the result of an acceleration?
Speeding up
Slowing down
Changing direction
all of the above
A girl throws a tennis ball horizontally forward with a speed of 3 m/s from a height of 1.5 m. At the same moment, a boy standing next to her drops a tennis ball straight down from a height of 1.5 m.
What is the initial vertical speed of the girl's ball?
0 m/s
1.5 m/s
2.0 m/s
3.0 m/s
A girl throws a tennis ball horizontally forward with a speed of 3 m/s from a height of 1.5 m. At the same moment, a boy standing next to her drops a tennis ball straight down from a height of 1.5 m.
If air resistance is disregarded, which ball will hit the ground first?
the boy's ball
the girl's ball
neither
they land at the same time.
Which hits the ground first? A golf ball being thrown horizontally or a golf ball being dropped from the same height at the same time
The ball thrown horizontally
The ball dropped
They touch the ground at the same time
The result depends on the planet you are on
A projectile is launched at 20 m/s at 250 above the horizontal. If another projectile is launched at the same speed, what angle will yield the same range as the first projectile?
450
550
650
750
A pebble is dropped from the top of a high cliff. If it hits the ground 4 seconds later, what is the final velocity of the pebble right before it hits the ground?
20 m/s
40 m/s
60 m/s
80 m/s
A soccer ball is kicked from the ground with a parabolic trajectory. If it takes 4 seconds for the entire flight of the soccer ball, how long does it take to reach its maximum height?
8 seconds
4 seconds
3 seconds
2 seconds
You are launching a stomp rocket and want it to go as high as possible. At what angle (with respect to the ground) should you tilt the launcher?
30 degrees
45 degrees
60 degrees
90 degrees
You are launching a stomp rocket and want it to go as far as possible. At what angle (with respect to the ground) should you tilt the launcher?
30 degrees
45 degrees
60 degrees
90 degrees
When an object is "dropped", what is its initial velocity?
0 m/s
-5 m/s
-9.8 m/s
-14 m/s
When an object is "dropped", what is its acceleration?
0 m/s2
-5 m/s2
-9.8 m/s2
-14 m/s2
A rock is kicked horizontally off a 150 meter tall cliff with an initial speed of 16m/s. If the rock falls to the ground below, what is the initial height of the rock?
0m
9.8m
16m
150m
A rock is kicked horizontally off a 150 meter tall cliff with an initial speed of 16m/s. If the rock falls to the ground below, what is the final height of the rock?
0m
9.8m
16m
150m
Am expo marker is tossed straight up into the air. As the expo marker travels upward, its speed...
increases
decreases
stays constant
sporadically changes
A cannonball is shot horizontally off a cliff on a planet with zero gravity. The cannonball...
falls downward and speeds up
falls downward at a constant speed
goes straight and speeds up
goes straight at a constant speed
A ball, rolling at 4 m/s, rolls off the edge of a building and falls for two seconds. What is its vertical speed (vy) right before it hits the ground?
0 m/s
-10 m/s
-20 m/s
-30 m/s
A ball, rolling at 4 m/s, rolls off the edge of a building and falls for two seconds. What is its horizontal speed (vx) right before it hits the ground?
0 m/s
2 m/s
4 m/s
6 m/s
A change in velocity is called
Inertia
Acceleration
Net Force
Speed
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
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
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
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
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
