Question

q.7. which of the following terms is defined as a force that opposes motion?
a) buoyancy
b) applied
c) friction
d) magnetic

q.8. what forces are acting on an apple that falls to the floor?
a) only gravity
b) tension and buoyancy
c) gravity and air resistance
d) applied and air resistance

q.9. which type of force is applied by a string, rope, cable, or wire anchored onto an object?
a) buoyancy
b) tension
c) magnetic
d) friction

q.10. a plastic comb rubbed with dry hair attracts tiny pieces of paper.
what type of force is attracting pieces of paper?
a) tension
b) applied
c) magnetic
d) electrostatic

q.11. when an object is placed in a fluid, it experiences an upward force called _________.
a) buoyant
b) applied
c) friction
d) magnetic

q.12. equal forces that do not cause changes in motion are _____________.
a) net force
b) unbalanced
c) speed
d) balanced

q.13. which of the following forces is always perpendicular to a surface?
a) tension
b) applied
c) normal
d) magnetic

q.14. which of the following forces acts downward toward the center of earth?
a) tension
b) gravity
c) buoyant
d) friction

Explanation:

Answer:

Q.7. c) Friction
Q.8. c) Gravity and air resistance
Q.9. b) Tension
Q.10. d) Electrostatic
Q.11. a) buoyant
Q.12. d) balanced
Q.13. c) Normal
Q.14. b) Gravity