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Worksheets6.3 Simple Machines
Total questions: 19
Worksheet time: 22mins
Why do people use simple machines in their daily lives?
To make your works more difficult
To make work easier
To create more complex machines
To increase the amount of force needed
How do rollers help us move objects?
They reduce the force needed by decreasing friction
They make objects heavier
They are only used on smooth surfaces
They increase friction
What happens when the slope of an inclined plane is gentler?
More force is needed
It becomes steeper
No effects
Less force is needed
What are the three main components of a lever?
Arm, effort, and distance
Base, load, and handle
Fulcrum, load, and effort
Load, arm, and force
Which of the following items commonly uses gears?
A paper clip
A book
A pencil
A watch
To reduce force, We should choose a gentler slope (較平緩的斜坡） when we ride the bicycle up to the mountain.
True
False
When a gear set rotates, two connected gears will rotates in the ____________ direction
same
opposite
When two gears are connected by a chain, they rotate in the ________ direction, example like bicycle.
same
opposite
What happens when the effort arm is longer than the load arm?
making it harder to lift the load.
making it easier to lift the load.
What kind of simple machine does the tool in the picture use?
Lever
Inclined plane
Gears
Rollers
What are gears and how do they function?
Rollers
Inclined plane
Lever
Gear
What kind of simple machine does the tool in the picture use?
Rollers
Lever
Inclined plane
Gears
What kind of simple machine does the tool in the picture use?
Inclined plane
Lever
Gears
Rollers
Label it in the correct position.
Label it in the correct position.
Label it in the correct position.
Label it in the correct position.
Label it in the correct position.
Label it in the correct position.
