Which change is the best example of a physical

change?

(1) a cookie baking (3) ice cream melting

(2) paper burning (4) a nail rusting

The same roller coaster car reaches the bottom of the track, 0 m from the ground. if no mechanical energy was lost to friction, what is the car kinetic energy?

How are the copies of DNA made?

A rock is thrown up into the air. It reaches the apex of it's flight and falls back down to the Earth. At the top of the rock's flight, what is rock's acceleration?

Does the acceleration of a falling body change or is it constant

How do plants adjust their behahvior related to gravity, light and touch?

When a car turns a corner on a level road, which force provides the necessary centripetal acceleration? 1) gravity 2) normal force 3) air resistance 4) tension 5) friction

Use Newton's universal law of gravitation to explain why gravity is greater on Earth than on Mercury.

What is a magnetic field and how does it interact with magnetic materials?

What is significant about holden sitting on the radiator?

Which of the following occurs in meiosis that does not occur in mitosis 1 fertilization occur 2 body cells are made 3 sex cells are made 4 cell division occurs