Question

1. Which best describes force?
the blank before each
It is a change in position.
It is attracting or pulling things.
It is a push or a pull.
d. It is a measure of objects.
c. friction
d. gravity
2. Which of these forces pulls an object toward the center about which it is rotating?
a. centrifugal force
b. centripetal force
3. What force tends to pull an object away from the center about which it is revolving?
centrifugal force
b. centripetal force
c. friction
d. gravitational force
4. Which best describes friction?
a. It is a rotating force.
b. It is an opposing force.
It is a force that pulls things toward the center.
d. It is a force that pulls things away from the center.
c.
3. Which shows that an object has moved?
a.
When the object has more energy
b. When the object has changed position in relation to a reference point
When the weight of an object changed in relation to its mass
d. When the force was exerted on the object
6. When you throw an object upward, it goes down to the surface. What does this show?
a. balanced forces
c. gravity
b. friction
d. unbalanced forces
7. In a tug-of-war game, the two teams are matched equally. What does this demonstrate?
a. action forces
c. reaction forces
b. balanced forces
d. unbalanced forces
a. force
8. Which refers to the amount of matter any object possesses?
c. motion
b. mass
d. weight
9. Which of these serves as a good lubricant?
a. grease
c. vinegar
b. sand
d. water
10. In which surface does an object move slowly?
c. smooth
b. shiny
d. rough
a. hard​

Answer 1

Answer:

b. It is an opposing force

Rough

Explanation: