IPC Physics Test#2

What changes the amount of force needed to do a job or the direction in which a force is applied?

• technology

• simple machine

• energy

What is the mechanical advantage of a wheel and axle?

• a

• b

What is the simple machine that is an inclined plane wrapped around a central cylinder to form a spiral?

• wheel and axle

• inclined plane

• pulley

• screw

What makes up the physical universe?

• water and air

• atoms and molecules

• work and force

• matter and energy

Which scientist found how mechanical energy due to motion compares to heat?

• Newton

• Joule

• Watt

• Fahrenheit

Most substances _______ when heated.

Entropy naturally increases over time.

• True

• False

Which one of these is NOT a simple machine? (Be able to list all SIX.)

• pulley

• motor

• wheel and axle

• inclined plane and wedge

Which is not a way that thermal energy is transferred? (Be able to define them, too.)

• conduction

• radiation

• convection

• covalent

What is the mechanical advantage formula for a lever?

• effort arm/load arm or Distance (input)/Distance (output)

• m x g x h

• diameter of wheel/ diameter of axle