Q: When potholders are used to remove hot pans from an oven, the potholders are serving as

OPTIONS:
- conductors.
- insulators.
- reflectors.
- transmitters.
A: insulators.
Q: Safe practices in the laboratory include all of these except

OPTIONS:
- tying back long hair.
- wearing safety goggles.
- performing each step quickly.
- wiping up spills immediately.
A: performing each step quickly.
Q: Light is refracted the least when passing through a

OPTIONS:
- telescope lens.
- a tinted window.
- magnifying glass.
- a pair of eyeglasses.
A: a tinted window.
Q: Which simple machine increases the distance over which a load travels and reduces the needed force?

OPTIONS:
- wheel and axle
- wedge
- pulley
- inclined plane
A:
inclined plane