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Vocabulary
Compound Machines
Wheel and Axles
Pulleys
Levers
Wedges
Inclined Planes
Screws
100
A device that makes work easier.
What is a simple machine.
100
A crane has these 2 simple machines.
What is a pulley and a wheel and axle.
100
The rod that goes through the wheel is called this.
What is an axle.
100
Name 3 objects that have levers.
What are a seesaw, hammer, shovel, your arm
200
A push or a pull on an object.
What is force.
200
Scissors has these 3 compound machines.
What is a lever, screw, and wedge.
200
Name 3 objects that use wheel and axles.
What are wheel barrow, car, ferris wheel, bicycle.
200
The pivot point or what the bar is resting on is called this.
What is fulcrum.
200
Name 3 objects that are inclined planes.
What is a ramp, slide, stiars, escalator
300
The rubbing of one object against another can cause.
What is friction.
300
A pizza cutter has these 3 simple machines.
What is a lever, a wedge, and a wheel and axle.
300
The pointy edges of a gear are called these.
What are teeth.
300
This simple machine is 2 inclined planes joined together.
What is a wedge.
300
Name 3 objects that are screws.
What is a jar lid, lightbulb, hose nozzle.
400
A spring scale was used to measure these units.
What are newtons.
400
A wheelbarrow has these 2 simple machines.
What is a wheel and axle and lever.
400
Name 3 objects that have pulleys.
What are blinds, crane, flagpole, clothesline
400
Name 3 types of wedges.
What is an axe, nails, knives, push pins, your teeth.
400
The spirals on a screw are called these.
What are threads.
500
A formula to used to calculate how much work you did.
What is W=F x D work equals force x distance
500
A machine with two or more simple machines is called this type of machine.
What is a compound machine.
500
Describe what a pulley comprises of.
What is a wheel with a groove around it that holds a rope or a chain.
500
Name a compound machine that might have a lever or a wedge and name which parts they are.
What is a pizza cutter, scissors, bicycle.
500
What other simple machine is wrapped around a screw.
What is an inclined plane.