Question

11. Which is described as the measure of the force which the earth pulls
d weight
wity
12 Why does n rolling ball eventually stop?
The ball decreased its maca
D. The ball increased to acceleration
e The ball lost its motion
1 The ball was acted upon by friction
d. Law of Conservation of Energy
13. Which law of motion explains that meatbelts are important
8. Law of Acceleration e Law of Inertia
b Law of Action Reaction
14. What happens when a fast moving vehicle slows down?
a li accelerates
o, It changes direction
b. I decelerates
d. It remains in constant motion,
15. Which of these objects is not accelerating?
a ball dropped from the window
b. a ball bit by the baseball player
c. a truck moving constantly along the highway
d. a ball kicked by a football player
16. Objects with greater mass required more force than objects with lesser mass to me
a. Law of Acceleration
b. Law of Action-Reaction
c. Law of Inertia
d. Law of Conservation of Energy
17. Which describes the speed and direction of a moving object?
a. acceleration
c. motion
d, vclocity
b, mass
18. Who compiled and explained the three laws of motion?
a. Galileo Galilei
c. Sir Isaac Newton
b. James Watt
d. Alexander Fleming
19. Which law explains that an object at rest will stay at rest and an object in motion will
remain in constant motion unless acted upon by an outside force?
a. Law of Acceleration
c. Law of Inertia
b. Law of Action-Reaction d. Law of Conservation of Energy
20. Which law states that force is directly proportional to the mass and acceleration of an
object?
a. Law of Acceleration
c. Law of Inertia
b. Law of Action-Reaction d. Law of Conservation of Energy​

Answer 1

Answer:

11 ans On Earth all bodies have a weight, or downward force of gravity, proportional to their mass, which Earth's mass exerts on them. Gravity is measured by the acceleration that it gives to freely falling objects. At Earth's surface the acceleration of gravity is about 9.8 metres (32 feet) per second per seconds.

12 ans When you roll a ball on the ground, the electrons in the atoms on the surface of the ground push against the electrons in the atoms on the surface of your ball that is touching the ground. A rolling ball stops because the surface on which it rolls resists its motion.

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