Forces
Gravity and friction
What are 2 forces we experience every day?
Any object that makes work easier.
What is a machine?
A wheel with an axle, or rod, running through the wheel.
What is a wheel and axle?
A flat, sloped surface.
What is an inclined plane?
A simple machine formed by one or more inclined planes.
What is a wedge?
A push or a pull.
What is a force?
The force you apply to cause a simple machine to do work.
What is effort?
A grooved wheel with a rope that fits in the groove.
What is a pulley?
An inclined plane wound around an axle.
What is a screw?
A type of wedge used to keep boards together.
What is a nail?
The force that resists the movement of objects against each other.
What is friction?
The weight of the object being moved.
What is a load?
A wheel and axle with "teeth" that work together.
What is a gear?
The marks of an inclined plane on a screw.
What is a thread?
A wedge used to split something apart.
What is an ax?
A change in position.
What is motion?
A bar that turns on a point.
What is a lever?
Only the wheel moves when the rope is pulled.
What is a fixed pulley?
An inclined plane that helps movers move furniture into a truck.
What is a ramp?
A wedge used to prop open a door.
What is a doorstop?
When a force moves an object over a distance.
What is work?
The fulcrum is between the load and the effort.
What is a first-class lever?
Because the rope moves a greater distance, less effort is needed in this type of pulley.
What is a block and tackle?
A road that winds around like the threads of a screw.
What is a mountain road?
A wedge used to cut something.
What is a knife?