Show:
General
Lever
Inclined Plane/Wedge/Screw
Pulley
Wheel and Axle/Gear
100
True or false: Most of the machines we use today contain only one simple machine.
What is false?
100
The object being lifted is the __________.
What is load?
100
Another name for an inclined plane is a ____________.
What is ramp?
100
Here at school, you could see a pulley on a ______________.
What is flagpole?
100
The wheel and axle is made up of two parts: the wheel that turns on a post, which is called the __________.
What is axle?
200
A bike contains wheels, levers and ________
What is gears?
200
The force that moves a lever up and down is the ________.
What is effort?
200
If you use an inclined plane, the distance is longer, but it takes less _______________.
What is effort?
200
A pulley system made of two pulleys is called a __________.
What is double pulley?
200
The distance from the center of a gear or wheel to the edge is called the ________
What is radius?
300
This is a tool that makes work easier to do.
What is a machine?
300
A lever rests on a support piece called a _______________.
What is fulcrum?
300
An inclined plane is a simple machine that is a flat surface that is ___________ at one end.
What is higher?
300
True or False: A pulley is made of a grooved wheel on a shaft with a rope that rides in the groove.
What is a true?
300
When two gears fit together, we say they ________
What is mesh?
400
Using a machine allows us to use ____________ force to move something.
What is less?
400
Where is the fulcrum located in a first class lever?
What is between the effort and load?
400
The steeper the inclined plane, the _________ the object will roll down.
What is faster?
400
When you pull down on the rope of a pulley, the other side of the pull goes _________
What is up?
400
True or False: A ring-shaped wheel has a hole in the middle.
What is True?
500
The simple machine that makes the hands tick on a clock is a __________
What is a gear?
500
True or False: When the fulcrum is closer to the load, it is easier to lift the load (less effort is needed).
What is true?
500
A screw takes _________ effort to screw in than pounding a nail.
What are less?
500
A _________________ pulley makes work easier than a one-wheel pulley.
What is two-wheel?
500
A gear has pieces that stick out of the gear called ________
What is teeth?