Calculating, MA,SR,Work,Efiiciency
Ma, SR, Work, Efficiency
Machines
Energy Sources in Machines and Gears
Simple Machines and Hydraulics and Pneumatics
100

The mechanical advantage of a pulley is 2.5 and the speed ratio is 5. What is the efficiency of the pulley?

What is 50%?

100

How do you calculate Mechanical advantage?

What is output/input?

100

What is an Archimedes screw?

What is a large screw inside of a tube?


100

What is the definition of potential energy?

What is stored enery ready to go?

100

What are the six simple machines?

What is pulley,lever,wedge,screw,inclined plane, and wheel and axle?

200

Toms machine moves the load 1.8m when the input distance is 6.2m. What is the speed ratio for the machine?

What is 3.44m?

200

What is work input?

What is work needed to use or operate the machine?

200

What is the purpose of machines?

What is a device the helps humans do work and use energy more effectively?

200

What is the defintion of kenetic energy?

What is energy at work?

200

What is Pascals Law?

What is pressure applied to an enclosed fluid is transmitted equally in all directions?

300

Hank invented a machine that could move 400N with only 130N input. What is the MA of this machine?

What is 3.08?

300

What is the formula for calculating efficiency?

What is mechanical advantage/speed ratio x 100%

300

True or false, we have potable water because of machines.

What is true?

300

What are gear trains?

What is two or more wheels working together?

300

Why is a fulcrom important?

What is the point of which a beam pivots and makes the lever work?

400

A pulley system has been found to be about 96% efficient. If you need to raise a 30N object 1.5m off the ground, how much rope do you need to pull if you use 15.6N of force?

What is 3m?

400

How do you calculate work?

What is force x distance?

400

How were machines powered in the past?

What is human or animal?

400

What is power transmition?

What is the movement of energy?
400

What is the role of a wheel and axle in a bike?

What is the wheel and axle are the wheels of the bike which makes the bike move?

500

You have a force of 40N to push a box of 3.2m along the floor. How much work have you done?

What is 120J?

500

Hoe does friction effect MA

What is the actual MA will be less than theoretical?

500

What are 3 parts of a Roman Aqueduct?

What is pump, channels and and a distribution system?

500

What is the definition of linkage?

What is the direct connection to transfer energy from an energy source to an object?

500

What does a hydrualic lift do?

What is it is used to move a car of the ground?

M
e
n
u