Chapter 15-Part 1 Question Preview (ID: 30101)
Review 14.
TEACHERS: click here for quick copy question ID numbers.
Which one of the following is NOT an example of work being done?
a) the moon orbiting the Earth
b) pushing a box from the bottom of the hill to the top of the hill
c) pulling a sled across a field covered wth snow
d) lifting a book bag off the floor
A fixed simple pulley that is used to lift a block does which one of the following?
a) doubles the force required to lift the block
b) decreases the force required to lift the block
c) makes the block easier to lift by changing the direction of the force needed to lift it
d) decreases the force required and changes the direction of the force required
A slanted surface used to raise an object is a (n) _______________.
a) efficiency board
b) effort ramp
c) inclined plane
d) wedge
A device that does work with only one movement and changes the direction of a force is a (n)
a) compound machine
b) effort machine
c) screw
d) simple machine
A bar that is free to pivot about a fixed point is a
a) fulcrum
b) lever
c) ramp
d) wedge
The rate at which work is done is called
a) efficiency
b) effort time
c) force
d) power
The work output of a machine divided by the work input is the _________ of the machine.
a) efficiency
b) effort
c) force
d) power
The amount by which a machine multiplies an input force is called the _______________.
a) efficiency factor
b) fulcrum
c) mechanical advantage
d) resistance force
An inclined plane with one or two sloping sides forms a machine called a _______________.
a) pulley
b) lever
c) ramp
d) wedge
An inclined plane wrapped around a cylinder post is a __________________.
a) pulley
b) ramp
c) screw
d) wedge
A photovoltaic converts __________________________ energy.
a) electrical to radiant
b) chemical to electrical
c) radiant to thermal
d) radiant to electrical
A blimp flying around over the Super Bowl has ____________________ energy.
a) kinetic and potential
b) kinetic and chemical
c) potential and radiant
d) kinetic and electrical
When you see a change in the environment you know that _____________ has been transferred.
a) energy
b) force
c) heat
d) motion
Play Games with the Questions above at ReviewGameZone.com
To play games using the questions from above, visit ReviewGameZone.com and enter game ID number: 30101 in the upper right hand corner or click here.
To play games using the questions from above, visit ReviewGameZone.com and enter game ID number: 30101 in the upper right hand corner or click here.
TEACHERS / EDUCATORS
Log In | Sign Up / Register
Log In | Sign Up / Register