Write the letter of the correct answer.
1. If the combined force acting on a stationary object is balanced, then the object will
Remain at rest
c. Decrease speed at a steady rate
b. Begin moving backward
d. Increase speed in the direction of the strongest force.
2. Which of the following actions involve a pulling force?
1. Removing white hair from the scalp.
Lifting a bag from the floor.
Fitting an electrical plug into an electrical socket.
IV. Typing on computer keyboard.
a. I and II only
c. III and IV only
b. I and III only
d. l, ll and Ill only
3. Which of the following statements is not true?
A force can cause a ball to move from left to right.
b. The harder a ball is kicked, the greater is the force exerted on the ball.
C. Greater force is needed to make an object move faster.
d. Forces cannot be seen, but they can be felt.
4. If the forces of an object are unbalanced, which of the following things about the object can ch
1. Speed of the object
Direction of the object
III. Mass of the object
a.
I only
b. ll only
c. I and II
d. I and m
a.
II.
d. the north and the south pole
5. The force of gravity on Earth pulls objects toward
a. Its center b. its north pole c. its south pole
6. The potter shown is using force to change the
Color
c. mass
C. position
7. The greater the distance between masses, the
a. Greater
b. smaller
c. farther
a.
of the piece of clay.
d. shape
is the gravitational attraction.
d. more
8. To jump, you must overcome the force of
a. Friction
b. the wind c. gravity
d. the road
9. When you throw a ball forward, gravity causes the path of the ball to.__
a. curve upward
b. curve downward
c. stay straight
d. fall straight downward
10. The weight of an object does is due to gravity ___on it.
a. moving
b. orbiting
c. pushing
d. pulling
11. The mass of an object does not change from place to place, but its ___ does.
a. speed
b. weight
c. shape
d. width
12. how does gravity affect how high person jumps?
a. the weaker the gravity, the lower the jump.
b. the weaker the gravity, the higher the jump.
c. the stronger the gravity, the higher the jump.
d. Gravity does not affect how high one can jump.

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