4. What factor delays the motion of the toy parachute in
reaching the ground?
A. air bubbles
C. air friction
B. air pockets
D. air supply
5. What force causes the ball joggler to perform his tricks
A. force
C. gravity
B. friction
D. magnetism
6. Because of gravity, what is the direction of motion of a
pitched ball?
A. curved line
C. zigzag line
B. straight line
D. slanting line
7. Why did a ball that is thrown to the air fall back to the ground?
A. Gravity caused the ball to fall.
B. Air caused the ball to fall on the ground.
C. The weight of the ball caused it to move fast.
D. Acceleration caused the ball to move to the ground.
8. When a ball is thrown upward, at which position is the motion
of the falling ball fastest?
A. middle
C. close to the ground
B. topmost
D. farthest from the ground
9. Which of these will experience the biggest gravitational pull in
space?
A. astronaut
C. giraffe
B. elephant
D. everything is weightless in space
10. A rubber ball and a plastic ball are dropped at the same
time from the same height. Which of the two balls will reach
the ground first and why?
A. the plastic ball because it is lighter and the pull of gravity
is lesser
B. the rubber ball because it is heavier and the pull of
gravity is stronger
C. the rubber ball and the plastic ball will reach the ground
at the same time because they are all balls
D. None of the above​