Show:
Potenital Energy and Kinetic energy
Work
Simple machines
Machines
Wordies
100
What is the defintion of potential energy
energy stored
100
What is work measured in?
Joules
100
What is the 6 basic simple machines
Inclined Plane,Wedge,Screw,Lever,Wheel and axle,and pulley
100
What is the meaning of machine
A device that changes the amount of force exerted of direction in which force is exerted
100
What is the meaning of Wheel and axle?
A simple machine- two circularor cylinder objects that are fastened together and rotate around a common axis
200
What is the definition of kinetic energy
Energy used in motion
200
What is the meaning of work
The produce of force and distance when force is used to move an object
200
What is a lever
A simple machine- a ridged object that pivots about a fixed point
200
What is of these options in a machine? A. paper clip B. Hammer C. Can opener D. All the aboveD. All the above
D. All the above
200
What is the meaning of pulley
A simple machine- a grooved wheel around which is wrapped a chain or rope
300
What is an example of P.E ? A). a person swinging a bat B). A roller coaster at the top of a hill C).A person walking
B). A roller coaster at the top of a hill
300
What is work formula?
Force x distance =work
300
What is an inclined Plane?
A simple machine- A flat surface with one end higher then the other.
300
What is the meaning of input force?
The excerted on a machine
300
What is the meaning of a Compound machine
A device that combines two or more machines
400
What is an example of K.E ? A). A apple sitting on a counter B). A acorn sitting on a tree C). A rock falling down a hill
C). a rock falling down a hill
400
What the answer to this math problem? If you push a metal block with 30 N. of force and you push it 2 meters . How much work has been done
60 joules
400
What is a wedge?
A simple machine- that is thick at one end and thin at the other end
400
What is the meaning of output force
The Force excerted on an object by machines
400
What is the meaning of gears
Two or more wheels linked together by interlocking teeth
500
What is th answer to this P.E math problem? If there is a a bird sitting on a tree 30 feet high and it weighs 10 pounds. What is the P.E
300 P.E
500
What is the answer to this math problem. You put in 10 N. of force into lifting a box 20 meters. How much work have to done?
200 joules
500
What is a screw
A simple machine- of an inclined plane wrapped around a central cylinder to form a spiral
500
What is the meaning of Mechanical Advance
The number times the force excerted on a machine is multiplied by the machine is multiplied by the machine
500
What is the meaning of efficency?
The percent of the input work that is convereted to output work