WorksheetsEnergy & Work
Total questions: 42
Worksheet time: 26mins
The force that pulls all objects toward the earth’s center is ____.
friction
gravity
energy
What is done when a force moves an object over a distance?
work
energy
friction
The ability to do work is ____.
friction
gravity
energy
A simple machine makes ____ easier.
gravity
work
time
The force applied to a simple machine to do work is called ____.
load
distance
effort
A lever is a simple machine that is made of a bar that turns on a point. What is the point that the bar turns on called?
fulcrum
wheel
cylinder
Give an example of an object that can be classified as a lever.
True or False. When the wheel of a wheel and axle turns one time, the wheel travels a shorter distance than the axle does.
True
False
True or False. The axle in a wheel and axle turns with greater force than the wheel does.
True
False
True or False. When using a pulley, the direction of the effort is down and the direction of the load is up.
True
False
True or False. A flagpole is an example of an object that uses an inclined plane.
True
False
True or False. A flat, slanted surface used to reduce the amount of effort needed to move an object to a higher position is a pulley.
True
False
True or False. One or more inclined planes used to force materials apart is a wedge.
True
False
Give an example of an object that uses a wheel and axle.
Friction is beneficial because it .
pulls your bicycle wheels toward the earth’s center
is what keeps a basketball player from slipping
helps a farmer’s seeds fall onto the soil
A change in position is __________.
motion
work
gravity
What is measured by how much force it takes to move an object and how far the object moves?
energy
gravity
work
Two students are asked by their teacher to push two boxes of gym equipment to the storage closet. The boxes are the same size. One box holds 8 basketballs. The other box holds 2 basketballs. The student pushing the box of 8 basketballs will do more work than the student who is pushing the box of 2 basketballs. This is because .
the 8 basketballs have less weight, and less weight requires less force to move the box to the closet.
the 2 basketballs have less weight, and less weight requires greater force to move the box to the closet.
Mark ran into the outfield to catch the baseball. Did Mark do any work?
Yes
No
Maybe
A bar that turns on a point is called .
Pivot
Fulcrum
Axis
A wheelbarrow and a rake are examples of .
an inclined plane
a pulley
When the wheel of a wheel and axle turns one time, the wheel .
travels a shorter distance than the axle does
does not travel at all
A simple machine made of a wheel with a groove that holds a rope is .
Lever
Inclined Plane
Wheel and Axle
The simple machine used to move a school’s flag up the flagpole is an example of .
an inclined plane
a screw
A simple machine that is a wheel with a rod running through it is .
Pulley
Lever
Wheel and axle
inclined plane
A flat, slanted surface, such as a ramp or a playground slide, is .
a pulley
a wheel and axle
An inclined plane reduces the amount of __________ needed to move an object against gravity to a higher position.
force
work
energy
A simple machine that is made up of one or more inclined planes and is used to force materials apart is a ____.
pulley
wedge
wheel and axle
An inclined plane wrapped around a cylinder is a ____.
pulley
screw
wheel and axle
Work is done when a force moves an object over a distance. True or False?
True
False
The weight of an object being moved by a simple machine is the effort.
True
False
The force applied to cause a simple machine to do work is load.
True
False
A dog riding a skateboard is the load.
True
False
Pushing a wheelbarrow full of pumpkins is an example of effort.
True
False
Simple machines help people because they make work easier.
True
False
What two forces caused the ball to drop to the ground and roll to a stop?
gravity and friction
gravity and air resistance
magnetism and friction
electricity and gravity
The ability to do work is ____.
energy
power
force
momentum
When using a lever, the more distance there is between the effort and the ____, the less effort is required to move the load.
fulcrum
load
pivot
arm
When using a pulley to lift a box, the direction of the effort is ____, and the direction of the load is ____.
The direction of the effort is upward, and the direction of the load is also upward.
The direction of the effort is downward, and the direction of the load is upward.
The direction of the effort is upward, and the direction of the load is downward.
The direction of the effort is downward, and the direction of the load is also downward.
Name one way God designed gravity to be beneficial to people.
As part of God’s design, rain falls to the earth because of gravity.
Gravity keeps bicycle wheels on the sidewalk.
When jumping, you return to the earth because of gravity.
Why are simple machines, such as rakes, wheelbarrows, and ramps, beneficial?
They make work easier by reducing the amount of force needed.
They increase the amount of work required.
They are more complex than other machines.
They are not beneficial.
