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

Consider lifting a box of mass m to a height h using two different methods: lifting the box directly or lifting the box using a pulley (as in the previous part).

There are four springs stretched by the same mass Spring A stretches 25 cm Spring B streiches 10 cm Spring C streiches 100 cm Spring D stretches 1 cm Which spring has the largest spring constant? a b c d

During an observation, it was noticed that light travels as bundles containing certain amounts of energy. What does this evidence reveal about light? A. It travels at a finite speed. B. It demonstrates a behavior of particles. C.

By what factor does the speed of light increases when light enters from glass to air

what are the common elements that make up series and parallel circuits, and how are circuits diagrammed?

Dr. Arenas is a scientist who has been trying to determine if increasing pressure will increase the sound that occurs when two chemicals explode.

Stephen buys a new mop he travels 3 km south and the. 4 km east and then 3km north how far does he need to go to get back. To where he started

The elements with the largest atomic radii are found in the

Students will explain, distinguish the difference between the 4 states of matter

Name one way that a mixture can be separated