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Short Answer
Mechanical Advantage
Solve
100
A simple machine with a grooved wheel.
pulley
100
A simple machine consisting of of two different sized wheels that rotate together.
wheel & axle
100
What is the mechanical advantage of a fixed pulley?
1
100
An inclined plane has a height of 5 cm over a distance of 10 cm. What is the mechanical advantage?
It has an MA of 2.
100
A man applies a force of 50 newtons to push a truck 100 meters down the street. How much work does he do?
He does 5,000 joules of work.
200
The rate at which work is done.
power
200
A simple machine made of an inclined plane wrapped in a spiral.
screw
200
True / False: The Mechanical Advantage of a movable pulley is less than one.
False
200
An inclined plane has a height of 30 cm over a distance of 5 cm. What is the mechanical advantage?
It has an MA of 6.
200
You lift a chair that weighs 50 newtons to a height of 1.5 meters and carry it 10 meters across the room. How much work do you do on the chair?
You do 33.3 joules of work on the chair.
300
A device that makes work easier.
machine
300
An inclined plane consisting of a bar that pivots at a fixed point.
lever
300
Describe a block and tackle pulley.
A block and tackle is a system of two or more pulleys with a rope or cable threaded between them, usually used to lift or pull heavy loads.
300
What is the mechanical advantage of a wheel and axle if the wheel has a radius of 40 cm and the axle has a radius of 5 cm?
The MA would be 8.
300
What is the rate of power if 208 joules of work are done in 4 seconds?
The rate of power would be 52 watts.
400
A simple machine that has a sloping surface to raise objects.
inclined plane
400
An inclined plane with two sloping sides that moves.
wedge
400
An axe is an example of which simple machine?
wedge
400
What is the mechanical advantage of a wheel and axle if the wheel has a radius of 42 cm and the axle has a radius of 4 cm?
It would have a MA of 10.5.
400
You push a 75 newton box 5 meters across the floor. How much work has been done?
375 joules of work have been done.
500
When a force causes an object to move in the direction of a force.
work
500
Tells how many times a machine multiplies force.
mechanical advantage
500
Give an example of a second class lever.
wheel barrow hole puncher stapler wagon nutcracker bottle opener nail clippers pliers scissors lifting a nail can opener hammer paper cutter
500
What is the mechanical advantage of a wheel and axle if the wheel has a radius of 36 cm and the axle has a radius of 3 cm?
It would have a MA of 12.
500
What is the power of a small motor that can do 9000 joules of work in 25 seconds?
The power is 360 watts.