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WorksheetsWork, Power and Energy Unit Study Guide
Total questions: 23
Worksheet time: 12mins
1. What is the definition of work? (What needs to happen for work to be done in physics?)
Force
distance
Force over a distance
Math Homework
1. A road is an example of what type of simple machine?
screw
lever
inclined plane
pulley
What two energies need to be added together to find the total energy? (think of a roller coaster)
radiant and potential
potential and kinetic
potential and nuclear
nuclear and kinetic
Which simple machine has a fulcrum?
lever
inclined plane
pulley
wedge
Work depends on _____ and ___________
force
distance
both force and distance
A slanted surface used to raise an object is a(n)____.
lever
wedge
screw
inclined plane
The unit of measure for power is _____.
joules
seconds
watts
minutes
An inclined plane with one or two sloping sides forms a machine called a ____.
pulley
lever
ramp
wedge
When two or more simple machines work together, they are called a(n) ____.
simpler machine
compound machine
effort machine
super machine
Force is measured in _____.
meters
joules
kilograms
Newtons
If you slide a box across the floor, it will not continue sliding. What force is acting on the box to slow it down?
Potential
Kinetic
Gravity
Friction
Distance is measured in _____.
meters
kilograms
Joules
Newtons
A kite stuck in a tree has ____ energy.
potential
kinetic
potential
thermal
Sunlight is produced through ____ energy.
nuclear
radiant
thermal
electrical
An inclined plane wrapped around a cylinder post is a ____.
lever
screw
ramp
wedge
The rate at which work is done is called ____.
efficiency
effort time
force
power
Power is work divided by _____.
time
force
distance
speed
According to the law of conservation of energy, the total amount of energy in the universe ____.
remains constant
increases
decreases
changes constantly
Whenever two surfaces interact, some energy is lost to thermal energy due to _____.
surrounding heat
water
friction
fusion
When a rubber band is stretched, it has ____ energy.
kinetic
potential
nuclear
chemical
Work is measured in _____.
meters
kilograms
Joules
Newtons
Which of the following is NOT an example of a wheel and axle?
screwdriver
door knob
screw
pencil sharpener
Which one of the following is NOT an example of work being done?
the Moon orbiting
Earth
pushing a box from the
bottom of a hill to the top of the hill
pulling a sled across
a field covered with snow
lifting a bookbag off
the floor
