Question

4. Which is not a scalar quantity
a. acceleration
b. distance
C. speed
d. time
5. Speed: velocity:_
a. acceleration: vector b. distance: displacement c. speed: acceleration d. time. scalar
6. Acceleration: velocity; velocity:
a. displacement
b. distance
c. speed
d. vector
7. If a truck travelled at 40 km/hr. within 6 hours. How do you describe its acceleration?
a. decelerating
b. negative
c. positive
d. zero
8. Positive acceleration:zero acceleration: constant velocity
a. constant speed
b. decreasing velocity
c. increasing velocity
d. zero velocity
9. A device used to measure the cars actual travelling speed.
a. odometer
b. speedometer
C. manometer
d. electrometer
10. The measurement in the changes of position in an object.
a. scalar quantity
b. distance
C. reference point
d. displacement
11. Vector quantity indicating distance and direction of an object
a. velocity
b. speed
c. distance
d. displacement
12. Units used in a long distance speed.
a. m./sec.
b. km./sec.
c.m./hr.
d. km./hr.
13. Rate of changes in position.
a. motion
b. speed
c. distance
d. acceleration
14. An assignment to a feeding level of an organism in a food chain.
a. food web
b. trophic level
c. ecology
d ecosystem
15. Twist:stretch:__
a. elongation: force
b. tension: torsion
c. torsion: expansion
d. torsion: tension​

Answer 1

Answer:

An attitude makes you better of you.”

“If you think I am worse then you’re wrong I am worst.”

“Hey, I am ……………….. write anything you want…”

“Positive or Negative?

Answer 2

tropic level is correct answer

ecology is also

or speed