Match the machines with how they make work easier. 1. Inclined plane
2. Screw
3. Wedge
4. Lever
5. Wheel & axel
6. Pulley

Possible answers:
A. Multiply by distance
B. Multiply the distance and change direction
C. Multiply the force
D. Multiply force and distance and change direction

Tafari worked one summer on a ship that set weather buoys in the ocean. he watched how one of the buoys moved in the water. describe which parts of the wave would cause the buoy to bob up and down. which wave property determined how fast the buoys bobbed in the water? he observed that when the wind blew harder, the ocean waves were larger, and the buoys moved away from the ship. what effect, if any, did the waves have on how far the buoys moved? explain your answer.

Science and technology are interdependent. advances in one lead to advances in the other. give an example of this phenomenon.

Balloon a has charge q, and identical mass balloon b has charge 10q. you hang them from threads near each other. choose all of the statements with which you agree. check all that apply. a. a and b exert the same magnitude forces on each other. b. the force that a exerts on b is 10 times the force that b exerts on a. c. the angle between the thread supporting a and the vertical is < the angle between the thread supporting b and the vertical. d. the force that a exerts on b is 1/10 the force that b exerts on a.