POE Semester 1 Review

Front

What does 3/8 mean in the context of screw threads?

Back

Diameter of Screw.

Front

What is the term for a simple machine that requires an effort force less than the load being moved?

Back

Mechanical Advantage.

Front

Calculate the current total if the answer is .043 amps.

Back

.043 amps.

Front

What is the current running through two resistors of 15 ohms each connected in series to a 1.5-volt battery?

Back

.05 amps.

Front

What is the current running through a light bulb with 15 ohms of resistance connected to a 1.5-volt battery?

Back

.1 Amps.

Front

Define 'Mechanical Advantage' in simple machines.

Back

The ratio of the load force to the effort force.

Front

What is the formula to calculate current (I) in a circuit?

Back

I = V/R, where V is voltage and R is resistance.

Front

What happens to the total resistance when resistors are connected in series?

Back

The total resistance is the sum of all resistances.

Front

What is the unit of electrical resistance?

Back

Ohm (Ω).

Front

What does 'static equilibrium' mean in physics?

Back

A state where the sum of forces and moments acting on a body is zero.