A screwdriver has a input of 50 N and an output of 45 N. What is the machines Efficiency?
What is 90%
200
When you exert a force in the same direction of motion you are moving, you are doing...
What is Work
300
If a man is carrying a 45 N bag 45 m, what is the amount of work he has done?
What is NO WORK!
300
If I have 35,000 Watts of power, how many kiloWatts is this?
What is 35 kW
300
What are the units for mechanical advantage?
What is NO UNITS!
300
A screwdriver is this type of machine.
What is Wheel and Axle
300
The number of times a machine increases a force exerted on it.
What is Mechanical Advantage
400
A nice lady is pushing a 67 N desk 25 m across her room. What is the amount of work she is doing?
What is 1,675 Joules
400
A young husky pulls a 98 N sled 65 m. It takes the Husky 45 seconds to do this. What is the power of the husky?
What is 141.5 Watts
400
To create a lever, you need these TWO parts.
What is Lever Arm and Fulcrum
400
Your Teeth are this type of machine.
What are Wedges
400
The input force times the input distance will give you this.
What is Input Work
500
A student has done 450 Joules worth of work pushing a washing machine that weighs 75 N. What distance did he push the machine?
What is 6 meters
500
The power of a sumo wrestler is 120 Watts as he pushes another sumo wrestler who weighs 780 N. He pushes the other sumo wrestler 2 m. How much time did this take?
What is 13 seconds.
500
Your chin and neck are an example of this type of machine.
What is LEVER
500
A Lever is pushed down with a force of 15 N. The other end of the lever raises a 75 N load 5 m. What is the Mechanical Advantage of the machine?