Unit Two Work, Energy, Machines Question Preview (ID: 12660)


6th Grade Science. TEACHERS: click here for quick copy question ID numbers.

Stored Energy that an object has due to its position, condition, or chemical composition.
a) potential
b) machine
c) screw
d) mechanical efficiency

Is a device that helps people do work by changing the way work is done.
a) screw
b) machine
c) lever
d) mechanical efficiency

Ratio of a machine's output force to its input force.
a) lever
b) screw
c) mechanical efficiency
d) work

Is a simple machine that consists of a solid bar that pivots at a fixed point.
a) lever
b) potential energy
c) machine
d) work

The use of force to move an object in the direction of the force.
a) lever
b) potential energy
c) machine
d) work

Is an inclined plane that is wrapped in a spiral around cylinder.
a) lever
b) machine
c) screw
d) work

Energy that is stored due to the height of an object from the ground.
a) chemical energy
b) gravitational energy
c) mechanical energy
d) potential energy

Chemical bonds being released when we eat.
a) gravitational energy
b) mechanial energy
c) chemical energy
d) potential energy

Ability to do work.
a) machines
b) energy
c) work
d) levers

Energy of an object due to the object's motion.
a) Mechanical energy
b) Gravitational energy
c) Potential energy
d) Kinetic energy

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