PASAGOT PO NG MAAYOS!
DIRECTIONS: Encircle the letter of the correct answer.
1. After applying lubricant on the chain and gear of your bicycle, you can now pedal it with ease. Why is it so?
a. The lubricant cleaned the chain and gears.
b. The lubricant removed the rust from the chains.
c. The lubricant reduced the friction between the chain and gears.
d. The lubricant increased the friction between the chain and gears.
2. Why do we weigh less on the Moon compared here on Earth?
a. Because the moon has a smaller size.
b. Because the moon has no water on it.
c. Because the moon only reflects light from the sun.
d. Because the moon has a lesser mass compared to Earth.
3. Why do you slide faster in water slides compared to regular slides?
a. Because water slides are short.
b. Because water slides are rough.
c. Because water reduces friction.
d. Because the water increases the force of gravity.
4. Which of the following objects can reduce friction?
a. alcohol
b. oil
c. rocks
d. salt
5. What kind of forces does the ground exert against your feet?
a. gravity
b. friction
c. mass
d. contact
6. What is the heart of any power plant that converts mechanical energy into electrical energy?
a. electricity
b. power
c. turbines
d. appliances
7. Which of these is Not a precautionary measures in using electricity?
a. Avoid octopus connections
b. Check all the wirings of your appliances
C. Do not place appliances close to water resources.
d. Leave all appliances on when having a vacation for a long time.
8. What happens when heat is absorbed by an object?
a. it turns into sound energy.
b. It turns into kinetic energy.
C. It turns into thermal energy.
d. It turns into mechanical energy.
9. What happens when a spoon absorbs heat?
a. Its molecules vibrate faster.
b. Its molecules vibrate gently.
c. Its molecules stop vibrating
d. Its molecules vibrate slower.
10. Light energy cannot move objects on its own. It is transformed to what form of energy in order to make things
move?
a. kinetic energy
b. potential energy
c. mechanical energy
d. electrical energy
DIRECTIONS: Encircle the letter of the correct answer.
1. After applying lubricant on the chain and gear of your bicycle, you can now pedal it with ease. Why is it so?
a. The lubricant cleaned the chain and gears.
b. The lubricant removed the rust from the chains.
c. The lubricant reduced the friction between the chain and gears.
d. The lubricant increased the friction between the chain and gears.
2. Why do we weigh less on the Moon compared here on Earth?
a. Because the moon has a smaller size.
b. Because the moon has no water on it.
c. Because the moon only reflects light from the sun.
d. Because the moon has a lesser mass compared to Earth.
3. Why do you slide faster in water slides compared to regular slides?
a. Because water slides are short.
b. Because water slides are rough.
c. Because water reduces friction.
d. Because the water increases the force of gravity.
4. Which of the following objects can reduce friction?
a. alcohol
b. oil
c. rocks
d. salt
5. What kind of forces does the ground exert against your feet?
a. gravity
b. friction
c. mass
d. contact
6. What is the heart of any power plant that converts mechanical energy into electrical energy?
a. electricity
b. power
c. turbines
d. appliances
7. Which of these is Not a precautionary measures in using electricity?
a. Avoid octopus connections
b. Check all the wirings of your appliances
C. Do not place appliances close to water resources.
d. Leave all appliances on when having a vacation for a long time.
8. What happens when heat is absorbed by an object?
a. it turns into sound energy.
b. It turns into kinetic energy.
C. It turns into thermal energy.
d. It turns into mechanical energy.
9. What happens when a spoon absorbs heat?
a. Its molecules vibrate faster.
b. Its molecules vibrate gently.
c. Its molecules stop vibrating
d. Its molecules vibrate slower.
10. Light energy cannot move objects on its own. It is transformed to what form of energy in order to make things
move?
a. kinetic energy
b. potential energy
c. mechanical energy
d. electrical energy
Add an Answer
More Questions From This User See All
Answers & Comments
Answer:
1.D
2.D
Explanation:
1.After applying lubricant on the chain and gear of your bicycle, you can now. pedal it with ease. ... The lubricant increased the friction between the chain and the gears.
2.Density is a measure of how much mass is concentrated in a given space. Sir Isaac Newton discovered that as an object's mass increases, the gravitational attraction of that object increases. ... Thus, the gravitational attraction on the Moon is much less than it is here on Earth, and a person weighs less on the Moon.