TestI. Knowledge. Write your answers on the blank. (2pts each)

1. What is the Sl unit of work?
2. What is the equation for gravitational potential energy?
3. What is the lem used to identify the capacity to do work?
4. A mechanical energy in which the ernergy is moving matter and wave.
5. What is the term used to identify the amount of work done in a unit of time?
6. tis the amount of force a person exerts in the direction of the displacement
7. Itis a Law of Motion that explains that a force is due to an interaction between
two objects.
8.Who was the Scotish mathematician and physicist discovered the
electromagnetic waves that can travel in any medium and in vacuum?
9. What do we call the tuming back of light into the same mediunm after striking a
surface?
10. What do we call the term that does not transmit fight at all, so it is impossible
to see what is on the other side?

1. In the case of work (and also energy), the standard metric unit is the Joule (abbreviated J). One Joule is equivalent to one Newton of force causing a displacement of one meter. In other words, The Joule is the unit of work.

2. U= mgh

3.

4.A mechanical wave is a disturbance in matter that transfers energy through the matter. The matter through which a mechanical wave travels is called the medium (plural, media). There are three types of mechanical waves: transverse, longitudinal, and surface waves.

5.

6. Force in the Direction of Displacement. The work done by a constant force is proportional to the force applied times the displacement of the object.

Explanation:

Sorry yan lng muna haha