1.
A feather and a pebble released simultaneously from the same height do not reach the ground at the same time. Which of the following is the MOST possible cause?
A
Air Resistance
B
Friction
C
Force of gravity
2.
Which object would be most difficult to lift against gravity?
A
Spoon
B
Book
C
Car
3.
How does gravity affect objects near Earth? It__________.
A
pushes them away
B
pulls them in
C
makes them large
4.
When an object is thrown upward, its speed decreases in the sky until it stops and falls to the ground. What is the force that counteract the moving of the object upward?
