The energy in a wave travels

a) up and down

b) backward

c) forwards

d) waves do not carry energy

Match the description to the proper category to differentiate reflection and refraction 1) speed of ray does not change 2) Ray bounces off a boundary 3) Direction found by law of reflection 4) Direction found by Snells Law 5) Speed of ray changes 6)

What causes a spring tide?

Which is heavier, the earth or the moon

Thick fuild in sinuses

What is the instrumental uncertainty of the clock and the odometer?

List the types of radiation in order from least to most damaging.

Which of the following statements best describes the current state of understanding regarding the apparent acceleration of the expansion of the universe?

Should young people be allowed to do extreme sports? (give me two reasons why) 1. Opinion: 2. Reason why: 3. Reason why:

A light ray is incident on a reflecting surface. If the light ray makes a "35°" angle with respect to the normal to the surface, what is the exact angle (in degrees) made by the reflected ray relative to the normal?

Reimbursement means that a client is A. able to apply for healthcare insurance and refunded for a partial sum of the payment plan by the state. B.