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WorksheetsPhysics Olympics Quiz Show
Total questions: 70
Worksheet time: 35mins
What is the object's motion if the object has a positive velocity and negative acceleration?
The object is speeding up.
The object is slowing down.
The object is at rest.
The object is moving at constant velocity.
A mousetrap powered car begins from rest; travels away from its starting point, and then stops after 2 seconds. If the mousetrap powered car crosses the finish line with a speed of 2.4 m/s, what was the car's average velocity?
1.2 m/s
.12 m/s
12 m/s
2.1 m/s
The graph represents an object that is standing still.
True
False
Which section of the graph shows constant velocity?
A
B
C
F
Suppose a motorcycle is moving in a straight line and steadily increases its speed from 15 m/s to 28 m/s in 3 seconds. Calculate the motorcycle's acceleration.
4.33 m/s
14.33 m/s
4.33 m/s2
14.33 m/s2
An athlete runs twice around a circular track with a total length of 600 m. What is the runner's total displacement for the race?
600 m
1200 m
300 m
0 m
What is acceleration?
A change in position over time.
A change in velocity over change in position.
A change in displacement over change in time.
A change in velocity over change in time.
Two trucks of different masses collide head-on and STOP at the point of collision. Before the collision, --
the acceleration of the blue truck equals the acceleration of the yellow truck.
the mass of the blue truck equals the mass of the yellow truck.
the momentum of the blue truck is equal but opposite to the yellow truck.
the velocity of the blue truck is equal but opposite to the yellow truck.
Two forces are applied to a 2.0 kg block on a frictionless surface, as shown in the diagram. The acceleration of the block is --
3.0 m/s2 to the right.
3.0 m/s2 to the left.
5.0 m/s2 to the right.
5.0 m/s2 to the left.
When comparing the momentum of two moving objects, which statement is ALWAYS correct?
The object with greater velocity has less momentum.
The object with smaller mass has greater momentum.
The object with greater mass and smaller velocity has greater momentum.
The object with greater mass and greater velocity has greater momentum.
Dr. McDaniel walks from his house to the grocery store that is 3 km away and then heads back to his house. What is the displacement of Dr. McDaniel's trip?
0 km
3 km
6 km
9 km
Identify the direction of the centripetal force acting on an object traveling on a frictionless surface in counterclockwise circle.
A car traveling to the left with a constant speed on a rough horizontal surface is shown. Which vector best represents the force of Friction (Ff) on the car?
Vector 1
Vector 2
Vector 3
Vector 4
A moving freight car runs into an identical car at rest on the track. The cars link together. Compared to the velocity of the first car before the collision, the velocity of the combined cars after the collision is --
twice as large.
the same.
one half as large.
zero.
Which of the following velocity vs. time graphs best represents the motion of a moving object with no unbalanced forces acting on it?
A battleship fires two shells at the same time with same initial velocities but with different angles, which shell would stay in the air longer?
The shell that hits ship A.
The shell that hits ship B.
Both ships are hit at the same time.
A ball is thrown and follows the path shown. Air resistances is negligible. Point P is the highest point on the path. Which of the following vectors best indicates the direction of the force acting on the ball at point P?
There is no force on the ball at point P.
In order to have momentum, an object must be --
at rest.
moving.
disintegrated.
none of these
The planet Venus experiences centripetal force as it orbits the Sun. The centripetal force acting on Venus is --
the gravitational force acting on Venus due to the Sun.
pushing Venus away from the Sun.
tangent to the orbital path of Venus.
would still exist if the Sun were not present.
What is the most likely motion of the object depicted in the graph shown?
At rest
Constant speed
Positive acceleration
None of these
"For every action there is an equal and opposite reaction" is a statement of which of Newton's Laws of Motion?
1st
2nd
3rd
4th
The centripetal force acting on the rock is directed toward point _____.
A
B
C
D
The normal force is --
the gravitational force.
the contact force acting perpendicular to a surface.
the contact force acting parallel to a surface.
the force opposing the motion.
If an object in motion has forces acting on it that are balanced, which of the following characteristic of motion is equal to zero?
velocity
displacement
speed
acceleration
At which point does the pendulum in the diagram achieve its greatest speed?
2
3
4
5
A pendulum on earth swings with certain period; if the same pendulum is placed on the surface of the moon, the period of the moon will --
increase.
decrease.
remain unchanged.
be zero.
Which of the following factors has the greatest effect on the period of a swinging pendulum?
friction
amplitude
mass
length
For an object undergoing simple harmonic motion, the amplitude depends on --
period.
wavelength.
frequency.
initial displacement away from the equilibrium point.
A large metal stirring spoon is left in a pot of soup which is being heated over the stove. The chef knows she needs an insulated glove to pick up the spoon because the handle will be very hot. The heat transfer through the spoon is a form of what type of transfer?
conduction
convection
radiation
vaporization
Which mechanism of heat transfer is involved in heat flow from Sun to Earth?
convection
conduction
radiation
induction
Calculate the kinetic energy of a 1500 kg sports car traveling at 85 m/s.
5418750 J
63750 J
1500 J
17.64 J
Many homes in the southern United States have heating vents placed near the ceilings of rooms. This is not the most efficient way to heat a room because warm fluids tend to rise. Warm air rises due to what form of heat transfer?
conduction
convection
radiation
vaporization
What is the potential energy of a painter before he falls off his 7-meter-high ladder if he has a mass of 85 kg?
5831 J
4081.7 J
595 J
833 J
Person X, who weighs 500 Newtons, is late to class. It takes them 7.5 seconds to run up the stairs, a total height of 8.0 meters. How much power does Person X expend in their run upstairs?
468 watts
533 watts
4000 watts
30,000 watts
How much total work is done on a dragster when the nitrous is used if the boost from the nitrous increases the total kinetic energy of a car from 60,000 J to 110,000 J?
110,000 J
60,000 J
50,000 J
15,625 J
At which point will the car have the greatest mechanical energy?
A
B
C
All points are equal.
At which point will the car have the greatest speed?
A
B
C
D
At which point does the car's kinetic energy equal its gravitational potential energy?
A
B
C
D
Compared to walking up the same set of stairs, a student does _____ while running up the stairs.
less work
more work
the same amount of work
no work
If the velocity of an object is doubled, its kinetic energy will be --
halved.
doubled.
quartered.
quadrupled.
Which of the following scenarios does not describe work being done?
a car braking
climbing a
5-meter-high wall
holding a 250 kg barbell motionless above your head
MVP being lifted by teammates after winning championship
How many nodes are present in this standing wave?
4
0
3
5
Increasing a wave's wavelength ( λ ) will cause its frequency to --
decrease.
stay the same.
increase.
reduce to zero.
Waves can be 3 meters long and have speeds of 6 meters per second. What is the frequency of a wave like this?
2 Hz
18 Hz
12 Hz
9 Hz
A 4.8 Hz wave has a wavelength of 2.4 m. What is the speed of that wave?
2 m/s
0.21 m/s
11.5 m/s
0 m/s
The following diagram is a representation of what type of interaction?
rarefaction
diffusion
diffraction
reflection
A spaceship has reached the halfway point of a trip to Mars. The spaceship fires its engines for 3 seconds. Which of the following describes its motion at the end of the 3 seconds when the engines are turned off?
It continues to accelerate.
It moves with constant speed.
It moves with increasing speed, and then speed gradually decreases.
It gradually decreases speed.
When the coin is at its highest point, its velocity is --
zero.
negative.
positive.
The acceleration of the coin is --
greater as the coin travels up.
greater as the coin travels down.
the same the entire time the coin is in the air.
zero.
Which scenario best demonstrate's Newton's 3rd law of motion?
A baseball is hit by a bat. The force the ball exerts on the bat is equal in strength but opposite in direction to the force the bat exerts on the ball.
A soccer ball will stay at rest unless you kick it.
The acceleration of a ball is dependent upon the force and the mass.
You have to push a heavy ball harder to get it to move as fast as a small one.
A person pulls horizontally on the box with a force of 230. N. The force of friction between the box and the floor is 90 N. What is the magnitude of the net force on the box?
0 N
140 N
670 N
990 N
Because of the Doppler Effect, an object that produces sound and is traveling toward you (such as a bottle rocket) --
would sound lower pitched coming at you and higher pitched after it passed.
would sound higher pitched coming at you and lower pitched after it passed.
would have longer wavelengths in front of the rocket and shorter wavelengths behind it.
would have no difference in the sound of the rocket in relationship to where you are standing.
A man is riding a bicycle up a ramp. Which vector represents the weight of the rider?
I
II
III
IV
A man is riding a bicycle up a ramp. Which vector represents the normal force?
I
II
III
IV
A man is riding a bicycle up a ramp. Which vector represents the force of friction experienced by the bicycle tires?
I
II
III
IV
If you whirl a can on the end of a string and the string suddenly breaks, the can will --
fly directly away from you.
fly directly toward you.
fly off tangentially to is previous circular path.
spiral in toward your hand.
If the distance between two objects is doubled, the force of gravitational attraction between the objects will be --
the same.
double the original force.
one-half of the original force.
one-fourth of the original force.
The force of gravitational attraction between two objects is 20 N. If the mass of each object was doubled and the distance between the objects was doubled, the gravitational force between objects would be --
5.0 N
10 N
20 N
80 N
When calculating the gravitational force between two extended bodies, you should measure the distance from --
the center of each body.
the center of one body to the closest point on the other.
the most distant points on each body.
the closest points on each body.
During a lab a student rolls a ball down the hallway. The position vs. time graph shows the position of the ball at different times. Which force is most responsible for the decrease in the ball's velocity over time?
gravitational force
normal force
centripetal force
frictional force
A ball is left in the cabin of an airplane. When the plane accelerates forward, the passengers remain in their seats, and the ball rolls to the back of the cabin. What happens to the ball when the plane stops?
The ball accelerates toward the back of the plane with a higher magnitude.
The ball rolls to the front of the cabin.
The ball's inertia will prevent it from moving.
The ball continues moving backward just as it was when the plane was accelerating forward.
A 2 kg ball is thrown at 3 m/s. What is the ball's momentum?
2 kg ⋅ m/s
3 kg ⋅ m/s
6 kg ⋅ m/s
9 kg ⋅ m/s
The illustration shows the direction of forces on an automobile as it moves in a straight line. If the applied force remains constant and the drag forces increase, which of the following describes the motion of the automobile. (Note: The magnitudes are not drawn to scale.)
The car immediately will move backwards.
The car will maintain a constant velocity.
The car’s magnitude of velocity will increase.
The car’s magnitude of velocity will decrease.
A student is pushing her car to the nearest gas station applying a force of ‘F’ on the car with a mass of ‘m’, resulting in an acceleration of ‘a.’ A friend stops to help push the car, thus doubling the force applied. Which expression best represents the acceleration of the car after her friend begins to push?
a/2
a
2a
4a
A person on roller skates starts moving forward by pushing off a wall. Which best represents how Newton's third law affects this situation?
The person pushes backwards against the wall, and the wall pushes the
person forward.
Gravity pushes the person down, and the normal force pushes the person up.
The person remains at rest until the unbalanced force acts on them.
The person's acceleration depends on the force of their push and their mass.
A man (100 kg) and his son (50 kg) are trapped in the middle of a frozen pond (a frictionless surface). The man and his son decide to push against each other and slide across the ice to the edge of the pond. Which of the following statements is true?
Only the dad will make it off of the pond.
Only the son will make it off of the pond.
Both will make it off the pond, but the son will get there first.
Both will make it off the pond, but the man will get there first.
A student stands motionless in an elevator. A cable accelerates the elevator upward. Which free body diagram best represents the forces acting on the student?
A hockey puck is initially sliding across a level surface at 10 m/s before being subjected to the forces shown. Which of the following vectors most likely represents the normal force?
50 N up
50 N down
40 N left
40 N right
A hockey puck is initially sliding across a level surface at 10 m/s before being subjected to the forces shown. Which of the following best describes the motion of the puck?
It accelerates to the right.
It accelerates to the left.
It moves with constant velocity.
It is at rest.
What is the sum of all the forces for this Free Body Diagram?
200 N
120 N
20 N
0 N
