Pre-Activity
List at least 5 things that you do every day which you can consider as work:
1. Walking around
2. Sweeping the floor
3. Pushing an object
4. Driving a car
5. Going to the market
List at least 5 everyday phenomena where energy is used:
1. Walking
2. Running
3. Climbing a ramp
4. Using gadget for online class
5. Using LPG to cook
Analysis
When can you say that someone is doing a work? (Explain in at least 5 sentences.)
In everyday communication someone is doing work whenever they are performing any tasks such
as watching, carrying a sack while walking, breastfeeding, among others. In the perspective of
Science, Physics to be exact, work is done whenever there is a force that acts upon an object
causing a displacement of the object. Another way to determine if there is work is that the force
must have a component along the displacement. This means that when there is no work done in
the case of carrying a sack since the force is perpendicular to the direction of motion. If the force
is perpendicular to the direction of motion it means that there is no component along the
displacement. Another instance of no work done is when a force is applied to an object which is
not displaced.
Application
Enumerate at least five (5) energy-wasting activities or habit that you usually do. Then,
enumerate the steps you will take to avoid or minimize these to conserve energy.
Energy-wasting Activities or Habits
1. Leaving the lights on where there is no one in the room.
2. Leaving the stove on for too long when heating water.
3. Leaving the electric fan when not in use.
4. Going around malls without purpose.
5. Leaving my smartphone and electronics plugged in.
Steps to avoid or minimize usage of energy
1. I will check if lights are turned off before leaving the room.
2. I will immediately turn off the stove when I am done using it.
3. I will always turn off the electric fan when not in use.
4. I will minimize going outside not only to minimize energy but also to avoid COVID.
5. I will unplug the electronics in our home whenever it is not in use.