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Force that moves an object is called as
work
What is the formula of work?
W = F x d
200 N box moved with 3000 Joule of work. How far the box was moved?
3000/200 = 15 m
What is the definition of simple machine?
tools that makes work easier
Guess the simple machine
inclined plane
what is the mechanical advantage of simple machine with 200 N load and 50 N effort?
4
Guess the type of lever
3rd class
We need __________ joule of work to move a 200 N box for 2 m.
400 J
if we push 1500 cm box by doing 600 joules of work, how much force did we use?
40 N
Name the types of simple machine that can be used for opening a bottle using bottle opener
lever
A board 6 m long is leaned against a car to form an inclined plane. What is the height of the car if the mechanical advantage of the inclined plane is 3?
2 m
what is the force that we need to move 200 N box with moveable pulley
100 N
Name the types of simple machine that can be used for lifting a box from downstairs to upstairs
pulley
What is the length of effort arm?
100 cm
How much effort do we need to move 300 N load by using wheel and axle (radius of wheel and axle are 60 cm and 6 cm)
30 N
Name the types of simple machine that can be used for cutting down a tree
inclined plane
