Energy and Simple Machines

Front

A wheel is a modification of a(n) screw, lever, inclined plane, wedge.

Back

lever

Front

Which of the following is not an example of work? Options: an ice hockey puck laying on an ice rink, ship movement that causes ripples in the water, a man pushing a heavy box across the floor, a magnet repelling a compass needle

Back

an ice hockey puck laying on an ice rink

Front

Which of the following is not an inclined plane? Options: wrench, axe, chisel, ramp

Back

wrench

Front

In a first-class lever, where is the fulcrum located?

Back

The fulcrum is located between the effort and the resistance.

Front

A device in the shape of two inclined planes placed bottom to bottom is called a(n)...

Back

wedge

Front

What do third-class levers amplify?

Back

distance

Front

A mechanical advantage of <1 indicates...

Back

you are at a disadvantage when you use the machine

Front

The total kinetic energies of all particles in an object describes what kind of energy? Options: radiant, thermal, electrical, magnetic

Back

thermal

Front

A mechanical advantage of 1 indicates...

Back

the system is in balance

Front

Which has kinetic energy? Options: a compressed spring, a book on the bookshelf, an avalanche, a case of dynamite

Back

an avalanche