When light shines on a metal surface, the maximum energies of emitted electrons:

1. vary with the intensity of the light

2. vary with the frequency of the light

3. vary with the speed of the light

4. are random

What is the overall effect of Earth's global atmospheric circulation?

Mathew, a farmer, cultivates monocultures of wheat. What negative effect will monoculture farming have on Mathew's land? A. crop productivity will decrease B. greenhouse gases will generated C. nutrients will not be recycled back into the soil D.

A wire of Nichrome (a nickel-chromium-iron alloy commonly used in heating elements) is 1.3 m long and 1.6 mm2 in cross-sectional area. It carries a current of 3.2 A when a 2.0 V potential difference is applied between its ends.

Momentum is the mass of an object multiplied by its velocity. a. True b. False

Identify the forces acting on a skydiver in free fall and explain how/why the skydiver reaches terminal velocity.

A loop of wire is placed in a uniform magnetic field. (a) For what orientation of the loop is the magnetic flux a maximum? The plane of the loop is perpendicular to the magnetic field. The plane of the loop is parallel to the magnetic field.

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