Work
Force x Distance
What is the formula for work?
Work/Time
What is the formula for power?
How much a machine multiplies your force
What is mechanical advantage
The purpose of machines
What is to make work easier?
An example of an inclined plane
What is a ramp?
What is the requirement for work?
An object is in motion the same direction as the force
The definition of power
What is the rate of doing work?
The units of measurement for mechanical advantage
What is none - No units are required for MA
What is a screw?
an inclined plane wrapped around a cylinder
An example of a pulley
What is a /block and tackle/ flagpole
When the force of 1 newton moves an object 1 meter
What is the joule?
One joule per second
What is a watt?
daily double
output force = input force
(When the LF = EF what is MA?)
What is a mechanical advantage of 1?
An example of a wheel and axle
What is steering wheel/ab roller/tires/etc
The length of a ramp is an example of this
What is the distance of effort
Any part of a force that does not act in the ____________ of motion does no work on an object.
What is direction?
Doing work at a _________ rate requires more power.
What is faster?
daily double
output force > input force
(When the LF > EF what is MA?)
What is a mechanical advantage greater than 1
An example of a wedge
What is a nail/arrow/axe/knife/etc
The height of a counter onto which you need to lift a box
What is an example of the load distance or distance of resistance
An object moves with a force of 1600 N to the north 2.0 m. How much work was done?
What is 3200 J?
A boy has 3600 Nm and takes 1 minute to climb a flight of stairs. What was his power?
Refer to equation for Power.
What is 60 watts?
daily double
output force < input force
(When the LF < EF what is MA?)
What is a mechanical advantage less than 1
Give an example of a lever and tell its class.
What is a paint-can opener 1st/wheelbarrow 2nd /broom 3rd/seesaw 1st /etc
Daily Double
Which class lever does not multiply force?
What does a 1st class lever do when the fulcrum is in the exact middle of the lever?
3rd
Changes direction of force but does not multiply force