Show:
Simple Machines
Magnetism
Work
Force
Miscellaneous
100
What is a lever?
a board or bar that sits on a fulcrum
100
True or false...Magnets are attracted to objects made of iron.
True.
100
What is work?
Any time you make an object move using a force.
100
What is a force?
A push or a pull.
100
What is a wheel with jagged edges?
A gear.
200
What is a pulley? Give an example.
A rope or chain that moves around a wheel. Flagpole, blinds, lifting a bucket out of a well.
200
What do we call the two sides, or ends, of a magnet?
North and south poles.
200
How do simple machines help people work?
They make the work easier to do. People can use less force and energy to do work.
200
How can friction affect the speed of an object?
It can slow it down or stop it from moving.
200
Is a winding path leading up a mountain a simple machine?
Yes.
300
Describe an inclined plane.
A simple machine that is higher at one end.
300
If the north pole of a magnet is touching the north pole of another magnet, what will happen?
They will repel or push away from each other.
300
Which simple machine would be helpful to move a piece of furniture on to a truck?
Inclined plane.
300
True or false - Using a simple machine allows you to use less force.
True.
300
How can a pulley be used as a simple machine?
On a flagpole, on the blinds, on a bucket pulled up out of a well
400
Is a telephone a simple machine?
No.
400
What will happen if the south pole of a magnet is touching the north pole of another magnet?
They will attract or pull toward each other.
400
Where should the fulcrum be placed to make work easier to do?
Near the load.
400
Give an example of how using an inclined plane is helpful.
Pushing something heavy up a ramp, pushing a wheelchair up a ramp...
500
Name all six simple machines.
Wheel and axle, wedge, lever, screw, pulley, inclined plane.
500
Name the force that pulls objects down on Earth.
Gravity.
500
What factors affect how far an object will move?
The amount of force applied to it.
500
How does the amount of force used on an object affect its speed?
The more force that is used results in faster speed.
500
What is the definition of a screw?
An inclined plane wrapped around a rod.