Question

test on ws 4
sph3u1 -21
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match column a with column b
column a

1. mass
2. normal force
3. constant velocity
4. acceleration
5. weight
6. gravitational field
7. static friction
8. kinetic friction
9. tension

column b
a. the force exerted by a surface that acts perpendicular to that surface.
b. a measure of the amount of matter in an object.
c. the force that opposes motion between two surfaces that are already sliding.
d. the force transmitted through a rope, string, or cable when it is pulled tight.
e. a state of motion in which speed and direction remain unchanged.
f. the rate of change of velocity.
g. the force that resists motion when an object attempts to start moving.
h. the force of gravity acting on an object (mg).
i. a region in space where a mass experiences a gravitational force.

Explanation:

1. Mass: Defined as the amount of matter in an object, so matches B.
2. Normal force: Force from a surface perpendicular to it, matches A.
3. Constant velocity: Speed and direction unchanged, matches E.
4. Acceleration: Rate of velocity change, matches F.
5. Weight: Force of gravity on an object (mg), matches H.
6. Gravitational field: Region where mass feels gravity, matches I.
7. Static friction: Resists starting motion, matches G.
8. Kinetic friction: Opposes sliding motion, matches C.
9. Tension: Force through rope/string when pulled, matches D.

Answer:

1. Mass - B. A measure of the amount of matter in an object.
2. Normal force - A. The force exerted by a surface that acts perpendicular to that surface.
3. Constant velocity - E. A state of motion in which speed and direction remain unchanged.
4. Acceleration - F. The rate of change of velocity.
5. Weight - H. The force of gravity acting on an object (mg).
6. Gravitational field - I. A region in space where a mass experiences a gravitational force.
7. Static friction - G. The force that resists motion when an object attempts to start moving.
8. Kinetic friction - C. The force that opposes motion between two surfaces that are already sliding.
9. Tension - D. The force transmitted through a rope, string, or cable when it is pulled tight.