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Write the letter of the correct answer on your answer sheet.

1. A can of ligo sardines of a certain mass (m) falls from rest to the ground. It covers a distance (h). Which of the following statement is correct?
a. The speed of the can when it hits the ground is proportional to h.
b. The KE of the can when it hits the ground is proportional to h.
c. The KE of the can when it hits the ground does not depend on m.
d. The KE of the can when it hits the ground depends on m.
2. Matty lifted a box weighing 5kg vertically 2 meters above the floor, when suddenly his friend Mae bump him and the box fell onto the ground with a speed of 2 m/s. How much Kinetic Energy was transferred in the box?
a. 5 Joules b. 10 Joules c. 49 Joules d. 98 Joules
3. Honey was curios on the stored energies on objects. She tried to investigate by weighing and dropping coins. She used a 5 peso coin which is about 7.4 grams and a 10 peso coin which is about 8.0 grams. She dropped them on the same height of 1.5 meters above the ground. Which coin has the greatest potential energy?
a. 5 peso coin b. 10 peso coin c. both of them d. none of them
For numbers 4 to 5
4. Juan was playing on the swing while his friend Maria took a slow-motion video of him and captured his movements. Based on the diagram bellow at which point/s does Juan have the greatest Potential Energy (PE)?
a. A and B b. B and C c. C and D d. A and D

5. What happens with Juan’s PE as he moves from points A to D
a. Juan’s PE decreases as he loses and gains height
b. Juan’s PE increases as he loses and gains height
c. Juan’s PE decreases as he loses height, then increases as he gains height
d. Juan’s PE increases as he loses height, then decreases as he gains height​


Sagot :

Answer:

1.c

2.a

3.d

4.d

5.b

Explanation:

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