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15 questions
Which best describes all simple machines?
They have wheels
They have many moving parts
They have a bar that turns on a fixed point
They need only one force applied to make work easier
Think about how a stapler is used. What kind of simple machines is a stapler?
fulcrum
lever
pulley
wheel and axle
Which everyday item has a wheel-and-axle that makes work easier?
doorknob
hatchet
seesaw
scissors
What kind of simple machines is being used?
fulcrum
lever
pulley
wheel and axle
Mr. Krumich uses a screwdriver to open a lid on a paint can. How is the screwdriver being used?
as a pulley that lifts the lid up
as a wheel-and-axle that opens the can by turning the screwdriver
as a lever that changes the direction of the force needed to open the lid
as a fulcrum that splits the lid from the can
Miss MacCarone lives at the top of a hill. Which simple machine is the road to her house most like?
inclined plane
wedge
pulley
screw
In this picture, my sister Holly is pushing a box up a ramp. What could she do to lessen the amount of force she needs to apply?
use a larger truck
use a shorter ramp
use a wheel-and-axle
use a ramp that is less steep
Which object in this picture is an inclined plane?
the ladder
the seesaw
the slide
the swing
A jar lid has threads. These threads help hold the lid on tightly. Which simple machine is the jar lid?
lever
pulley
screw
wedge
A hand-operated can opener is made up of two levers, a wedge, and a wheel-and-axle. Which best describes the can opener?
a force
a screw
a compound machine
a simple machine
Teresa uses a wheelchair. Which simple machine will she most likely use to get past the front steps of the school?
inclined plane
lever
knife
wheelbarrow
What is an example of a wedge?
broom
doorknob
knife
wheelbarrow
Which simple machine is labeled C?
wedge
inclined plane
screw
wheel-and-axle
What is an inclined plane?
a wheel and rope that makes work easier
a simple machine that can hold two things together
a simple machines that spins in a circular motion to make work easier
a flat object that is slanted so one end is higher than the other
Miss Benowitz wants to keep the door propped open. Which simple machine is the best choice?
wedge
screw
pulley
lever
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