Transfer of energy in which force applied causes object to move in direction of force.
100
What is the mechanical advantage of a ramp if you have to use a force of 20N to push a 200N weight up the ramp?
10
100
What type of machine is a sea-saw?
Bonus- What number class is a sea-saw an example of and WHY?
Lever
1st Class Lever
Because the fulcrum is between the load and effort
100
A large rock and a long, thick board could be used to construct which simple machine? A) Screw B) Pulley C) Fulcrum D) Lever
D
100
Give an example of an incline plane.
Ramp
200
What are the TWO factors needed for work to take place?
1. Force has to be applied
2. Motion has to occur in direction of force
200
How much work was done by a person exerting 100 N of force on a snow blower that moves 5m?
Work = 100N x 5m
Work = 500J
200
What are the 6 types of simple machines?
Lever, Pulley, Wheel and Axle, Screw, Incline Plane, and Wedge
200
What simple machine can be used to change the direction of a force?
Pulley
200
When using a machine, do you do input force or output force?
Input force
300
What is the equation to calculate work?
Bonus- What is the unit used for Work?
Work= Force x Distance
Bonus- Joules
300
A man weighing 3,000 N is sitting on a bench of 5N. How much work is he doing?
0
300
What is the equation for mechanical advantage?
MA= output force / input force
300
Which simple machines make up a wheelbarrow?
wheel and axle and lever
300
An inclined plane wrapped around a cylinder is called a _______
Screw
400
Is it work?
1. Holding a book while walking around your desk
2. Lift your pencil off the floor
3. Try to pick up a heavy box
4. Play in snow for 5 hours
1. No, 2. Yes, 3. No, 4. No
400
How much work is done by a person carrying 500N weight 10m?
No work is done. Force is not in same direction as motion.
400
When using a Inclined Plane, less force is required to move an object, but you will have to move it a greater _________________.
distance
400
What kind of simple machine is a reel on a fishing pole? The part you move when pulling in a fish?
Wheel and Axle
400
What type of machine did you design for homework?
Rube Goldberg Machine
500
Fill in the blank:
Increasing the ___________ will decrease the work needed.
distance
500
A man does 500J of work across a distance of 10m. How much force did he use?
Force= Work/distance
500J/10m= 50N
500
What 2 simple machines can you find in a shovel?
lever and wedge
500
What is the tool used to measure Force on a machine?
Spring Scale
500
Make your own question about work or simple machines and answer it.
Bonus points if it involves calculations.