(Simple Machines)
What is a wedge?
An object that tapers to a thin edge
What is the formula for work?
W=Fd
What is the definition for work?
The energy transferred to an object when an external force acts on the object to move.
Block and tackle is a type of?
Pulley
What is the definition of torque?
any force that tries to cause an object to rotate around its axis.
What is a incline plane?
A flat sloping surface that connects lower and higher elevations. It makes raising objects easier.
The unit to measure work in is?
joules
What is a simple machine
Basic mechanical devices that change the magnitude, direction, or distance traveled if the force used when doing work.
A teeter-totter or carjack is an example of?
Lever
formula for efficiency?
(AMA/IMA) 100%
What is a lever?
a simple machine made of a rigid beam and a fulcrum.
What is the SI unit for power?
W
What is IMA?
Measure of mechanical advantage for an ideal machine.
A knife, hatchet, or shovel is an example of?
wedge
The rate of doing work?
power
What is a pulley?
a wheel that carries a flexible rope, cord, cable, chain, or belt on its rim.
What is the formula for power?
P=W/t
What is AMA?
Measures the mechanical advantage taking into account all mechanical losses sustained through the machine.
Ramps, ladders, and staircases are examples of?
Incline planes
Formula for AMA?
f out/ f in
What is a Wheel and Axle?
a type of simple machine used to make tasks easier in terms of manipulating force by applying the concept of mechanical advantage.
What is the formula for IMA?
d in/ d out
What is the definition for efficiency?
The effectiveness of a machine or process at converting energy from one to another
Car tires, bicycles, and wheelbarrows are examples of?
wheel and axle
What is a fulcrum?
It is the point at which a lever turns or pivots