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WorksheetsGrade 8 Physics chapter 4.2
Total questions: 20
Worksheet time: 13mins
Energy stored because of gravity is called:
Gravitational Potential Energy
Kinetic Energy
Mechanical Advantage
Chemical Energy
What is kinetic energy?
The energy an object has due to its position or condition
The energy an object has due to its motion
The energy an object has due to its chemical composition
The energy an object has due to its atomic structure
When does an object have no kinetic energy?
When it's at rest.
When it's moving very slowly.
When the only force that's acting on it is gravity.
When it has no electrical charge.
Which object has the most potential energy?
A ball resting on the ground.
A ball being thrown at 100 miles per hour.
A ball on top of a refrigerator.
A ball resting on the edge of a cliff.
When does a yo-yo have the most potential energy?
When it's at its highest point.
When it's at its lowest point.
When it's moving between its highest and lowest points.
When it's moving at its top speed.
When is potential energy transformed into kinetic energy?
When an object at rest is lifted to a higher elevation.
When an object at rest remains at rest.
When an object at rest is put into motion.
When an object in motion is stopped and put at rest.
What do potential and kinetic energy have in common?
They're both related to density.
They're both unrelated to size.
They're both related to volume.
They're both related to motion.
Which is the best synonym for potential energy?
Stored energy
Energy of motion
Energy due to gravity
Mechanical energy
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
The sum of potential energy and kinetic energy equals
work
transformation
total energy
mechanical energy
Conservation of energy means that
energy can be created but not destroyed
energy can be destroyed but not created
energy can both be created and destroyed
energy can neither be created nor destroyed
____________ is the ability to do work or cause change.
Energy
Force
Friction
Motion
What are the two factors that affect kinetic energy?
time and energy
power and mass
mass and speed
time and work
This is an example of what type of energy?
Kinetic
Potential
Electric
Thermal
A skier on top of a mountain is an example of
Kinetic
Potential
Thermal
Sound
I released a balloon that was full of air and it is flying around the room, the balloon has
kinetic energy
potential energy
