When you apply a force on an object that causes the object to move some distance.
100
What do machines do?
They make work easier. They also change the amount of force you apply over a distance when you apply the force.
100
What is an inclined plane?
A flat, sloped surface.
100
What is a lever?
A rigid (Sturdy) bar that is free to pivot (Rotate) on a fixed point.
100
What is a wedge?
A device that is thick at one end and tapers to a thin edge at the other end.
200
When you move an object and it does not move, what is happening?
Work is not being done, no matter how much force is exerted.
200
What are three types of simple machines? (These won't be in order)
1. Wheel and Axle
2. Screw
3. Pulley
200
What are some examples of inclined planes?
1. Ramp
2. Ladder leaning against something
3. Road going up a mountain
200
What are some examples of levers?
1. Screwdrivers
2. Wheelbarrow
3. Hammer
200
What are some examples of wedges?
1. Ax
2. Zipper
3. Knife
300
How do you calculate work?
Work= Force x Distance
300
What do a pulley, a screw, and a wheel and axle have in common?
Trick question! Nothing.
300
List a totally new example of an inclined plane. (Think outside the box!)
Anything with walking, running, pushing, pulling, (Basically, any type of movement), etc.
300
What in the human body work as levers? What are they used for? Use the correct term(s).
Bones, muscles, and tendons are used as levers in the human body.
300
What in the human body is an example of a wedge? How are they used? Use the correct term(s).
Incisors are used as wedges that help you chew food.
400
When you pick up a heavy set of logs and carry them across the yard, when are you doing work? When are you not doing work? How are you doing work and how are you not doing work?
You are doing work when you pick up the logs and you are not doing work when you carry them across the yard. You are doing work by exerting a force in the same direction; vertical. You are not doing work by moving the logs horizontal.
400
List three parts in your body that act as simple machines.
1. Incisors
2. Muscles, tendons, and bones
3. Joint
400
Name a type of everyday object that could be used as an inclined plane?
Wood, golf club, poles, basically anything that you can tilt.
500
Answer the problem.
Work=?
Distance= 17.6 meters
Force= 89 newtons
17.6 x 89= ?
Try to figure it out on paper. DON'T use a calculator.
1566.4
500
What are two examples of pulleys, screws, and wheel and axles?
Pulleys: Flagpole, cranes
Screws: Light bulb, jar lid
Wheel and Axles: Screw driver, Steering wheel
500
What body part COULD be counted as an inclined plane?