WorksheetsQualifying Quiz
Total questions: 26
Worksheet time: 32mins
Using the equation for KE= 21mv2 , what is the energy of the 5-kg moving object moving at 4 m/ s2 ?
20 Joules
40 Joules
30 Joules
1.2 Joules
It is the energy of a moving object.
Potential Energy
Chemical Energy
Elastic Energy
Kinetic Energy
What are the units for energy?
Watts
Joules
Newtons
meters
What is the definition of mechanical energy?
the energy that stored in the object due to the work done on it.
the sum of an object's kinetic and potential energy
the transfer of energy to an object by using a force that causes the object to move in the direction of the force
What is an example of potential energy?
A book sitting on a shelf
A car moving down the highway
A person playing basketball
stored energy due to interactions between objects or particles
kinetic energy
potential energy
mechanical energy
elastic energy
The faster the object moves, the _______ kinetic energy it has.
less
more
equal
none of the above
The diagram shows a diver’s motion from the top of a high diving board into a pool of water. At what point does the diver have the greatest kinetic energy and the least potential energy?
1
2
3
4
How can I gain potential energy? (choose 2 answers)
Run a mile
Climb a mountain
Walk up the stairs
Go down the stairs
KE = 1/2 mv2 . What would have the greatest impact on the overall kinetic energy of a moving object?
increasing the mass
applying less force
increasing the velocity
applying more force
Which of the following is an example of kinetic energy being transformed into gravitational potential energy? (7.P.2.2)
a person climbing a ladder
a person diving into a pool
a person storing food energy as fat
a person dropping a bat
An objects potential energy will increase with
Speed and mass
Height and mass
Speed and velocity
Height and velocity
Which of the following does not affect the amount of potential energy of an object?
mass
speed
height or location
strength of gravity
When a roller coaster is at the top of a hill it has
high potential energy
high kinetic energy
low potential energy
equal amounts of kinetic and potential energy
How does energy change?
The cart has more kinetic energy at the top than when it is going down the hill.
The cart has potential energy at the top while kinetic energy increases going down.
The cart has potential energy that is lost going down the hill.
The cart has kinetic energy at the top of the hill and no potential energy.
I am holding a balloon that is full of air, the balloon has
kinetic energy
potential energy
If a crate is moved 10 m with a force of 50 N, how much work is done?
40 Joules
60 Joules
500 Joules
5 Joules
Which graph represents the relationship between mass and kinetic energy?
Car 1 and Car 2 have the same mass. Which of the following statements is true?
Car 1 has the most kinetic energy because it is moving at a faster rate of speed.
Car 2 has the least amount of kinetic energy because it is actually smaller than car one.
Car 2 has the most kinetic energy because it is moving at a slower rate of speed.
Car 1 has the least amount of kinetic energy because it is moving at a faster rate of speed.
KE=21mv2
This is the equation for kinetic energy. Based on the equation, which of the following graphs most closely resembles the relationship between speed or velocity (v) and kinetic energy (KE)?
Increasing an object's mass will increase its kinetic energy.
true
false
