Please help. No links please answers will give brainliest 1. Which two simple machines would be useful if you wanted to move a heavy box up a stairway?
2. Which simple machine would be useful to attach two pieces of wood together?
3. Which simple machine would you find on a wagon, a car, and a truck?
4. Which three simple machines are based on inclined planes?
5. Do you think a baseball bat and a tennis racket are simple machines? Why or why not?
6. If an axe head is a wedge, are scissors a pair of wedges? Why or why not? *

1 inclined plane  and box mover trolley

2 screw and drill

3 The axle, or rod and wheels

4 slides, ramps, and hills.

5 yes because they help the ball move quicker

6 i am not sure about this one)

Explanation:i do not know i am guessing

1.   what is light?

light is an electromagnetic wave visible to the human eye. 

2. what is a reflection?

the rebounding of a light ray when it hits a mirror.

3. what is the incident ray?

contacts the surface of an object.

4. what is the reflected ray?

bounces off a reflective surface.

5. what is the normal ray?

perpendicular to the surface of a mirror.

6. what is the angle of incidence?

an angle formed by the incident ray and the normal.

7. what is the angle of reflection?

an angle formed by the reflected ray and the normal.

8. what is refraction?

(bending.)

9. what is a converging lens?

bring together light rays that pass through.

10. what is a diverging lens?

spreads out light passing through.

11. focal point?

the real point where the refracted rays meet when the incident rays run parallel.

i copy pasted btw from an website..