Which is a “big idea” of physical science? motion cannot be altered by forces. most of the mass of the earth consists of solid matter. the universe is getting smaller. energy can be transferred but it can never be destroyed.

The particles of an ice cube at 0°c (represented by the blue circles) come in contact with the particles of juan’s hand at 37°c (represented by the orange circles). which diagram correctly represents the temperature of the two substances and the direction of heat flow?

Identify the forces that contribute to the centripetal force on the object in each of the following examples: a. a bicyclist moving around a flat, circular track b. a bicycle moving around a flat, circular track c. a racecar turning a corner on a steeply banked curve

Blank liquids and gases exert a buoyant force on objects placed in them