Simple Machines Flashcards
What is a simple machine?
A simple machine is a device that does work by applying force, with less effort than you would need without the simple machine.
What are the 6 types of simple machines?
- Levers
- Wheel
- Pulley
- Wedges
- Screws
- Inclined plane
Which type of simple machine is a rigid piece that can pivot around a fulcrum. Used to lift heavy loads.
Levers
Which type of simple machine is a wheel with a groove and a rope. It is used to reduce the force needed to lift a heavy load.
Pulley
True or false. The fulcrum is special to only LEVERS.
True
Which type of simple machine = wheel and axle? It is used to reduce the force needed to move an object or to increase the distance over which it can be moved.
Wheel
Which type of machine is an inclined plane that circles an axis? It transforms the rotational motion into translational motion.
Screws
What type of simple machine is a flat surface that is set at an angle to a horizontal surface. It spreads the force needed to raise or lower a load over a larger distance.
Inclined plane
Which type of simple machine = 2 back to back inclined planes. Used to reduce the force needed to separate 2 objects.
Wedges
True or false. Efforts and loads are only with wedges and levers?
False. Efforts and loads are in all simple machines.
What is a force?
A force is an action that can make an object move or change the motion of an object that is already moving. A force can also change an object’s shape.
What are the two effects of a force?
- Change of motion
- Deformation
What are the effects of forces on a technical object (man made object)?
- Tension
- Compression
- Bending
- Torsion
- Shearing
