1. Trial and error is discouraged in science because it wastes time.

True

False

2. Conduction is the movement of energy from one substance to another by direct contact.

True

False

Ships A and B leave the same port. Ship A sails at 20 knots (nautical miles per hour) and ship B sails south at 15 knots. At what rate is the distance between them changing at 2 pm if: a. A and B both leave at noon. b.

Simple machines are designed to increase A) gravity B) friction C) force D) mechanical advantage

A leopard with a mass of 55.00 kg climbs 12.0 m up a tree. What is it's gain in GPE

If the force of gravity changes, what happens to the mass of an object?

What is the value of universal gravitational constant

Why is a block of gold is more dense than a block of iron of equal size?

How much work is required to uniformly accelerate a merry-go-round of mass 1490 kg and a radius of 7.80 m from rest to a rotational rate of 1 revolution per 8.33 s? Model the merry-go-round as a solid cylinder (I = ½ MR2).

What percentage of North American adults may be functioning below their potential due to prolonged exposure to stress

Give a example of frequency which an elephant can hear and a tiger cannot hear include a unit in ansawer

Why do you keep moving forward when you slam on the brakes of your bike?