The interaction between two waves that meet is called

a. reflection.

b. refraction.

c. diffraction.

d. interference.

Why is the letter A the most like a flower?

1. What layer of the Earth is flowing, solid and plastic?

Imagine you are on a bus with a helium balloon tied on a string tied to the seat in front of you. the bus stops short to avoid running over a rabbit and you are thrown forward. what happens to the balloon in relation to the bus? 1. the balloon pops.

The volume of a cuboid is the product of its length, breadth, and height. Give a possible metric unit for the volume. Is the unit for volume a basic unit or a derived unit?

If the Earthwere twice as massive as it is now, then the gravitational force between it andthe Sun would be

The scientific theories developed by copernicus galileo and newton resulted in

How could you find out which wire is broken in a cable?

Which block has more thermal energy? if the blocks are placed in thermal contact, will the thermal engery of the blocks change?

What is long term potentiation

Which of the following describes a conductor? A. a rubber shoe sole with electrons stuck to the bottom. B. Electrons moving freely through a copper wire. C. a balloon with a small region of negatively charged electrons. D.