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20 questions
Why is it harder to stop a four-person bobsled than a three-person bobsled?
the four-person sled has more KE
the four-person sled has less KE
As the velocity of an object decreases its KE will...
increase
decrease
stay the same
Kinetic energy is...
energy carried in ultraviolet waves
energy stored in food
energy in motion
energy from splitting an atom
What two factors affect an object's kinetic energy?
area and volume
mass and weight
weight and height
mass and speed
Where would this tossed baseball have the greatest amount of kinetic energy? (Hint: where is it moving the fastest?)
point W
point X
point y
point z
If moving at the same speed, increasing an object's mass will increase its kinetic energy.
true
false
Increasing an object's speed will increase its kinetic energy.
false
true
The faster an object moves, the ________ kinetic energy it has.
more
less
none of the above
all of the above
If all these objects are moving at 45 kg/h, which would have the greatest kinetic energy?
tennis ball
football
notebook
tv
Suppose all of these objects were moving at 12 m.p.h. Which of these would have the greatest kinetic energy?
A car moving
A person running
A ball rolling
Which one of these has kinetic energy?
a car parked on a steep hill
a tennis ball rolling across the court
a picture hanging on the wall
a piece of coal before it's burned
Look at the y-axis (the one labeled Kinetic Energy) on the left. What is the unit used to measure energy?
Newton (N)
Kilogram (kg)
Joule (J)
Meters per second (m/s)
At which position(s) does the pendulum have the greatest kinetic energy? Hint: where is the ball moving the fastest?
3
2 and 4
there is no kinetic energy
1 and 5
Look at this graph showing kinetic energy and speed of a moving object. Which of the following can be concluded from the graph?
Kinetic energy only changes when speed changes
Speed is only related to the size of an object.
All moving objects have the same kinetic energy.
Kinetic energy increases as speed increases
As the velocity of an object increases, its KE will...
increase
decrease
stay the same
Stationary objects have kinetic energy.
true
false
Which of these are examples of kinetic energy? Choose all three correct answers.
running
sleeping
walking
bike riding
Which of these are examples of kinetic energy? Choose all FOUR correct answers.
kicking a soccer ball
tossing a paper into the trash
bouncing a basketball
standing in place
hitting a volleyball
The energy of motion
Kinetic Energy
Potential Energy
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