# Ggggggggggggggggggg

Topics: Kilometre, Velocity, Acceleration Pages: 3 (345 words) Published: December 11, 2010
(Module 9 Study Guide) Trevor Hale 10th Physical Science
01 / 16 / 09

1.

A: Reference Point - a point against which position is measured.

B: Vector Quantity - a physical measurement that contains directional information.

C: Scalar Quantity - a physical measurement that does not contain directional information.

D: Acceleration - the time rate of change of an objects velocity.

E: Free Fall - the motion of an object when it is falling solely under the influence of gravity.

2. No. Motion depends on the reference point that is used.

3. That depends on the reference point that is used. The glass is not moving relative to the counter.

4.

A: The girl joggers.

B: Child in inner tube.

C: The first girl jogging.

5. 30 Min. x 1 Hr. = 0.5
60 min.

10 Miles = 20 Miles/Hr.
0.5 Hours

6. 6 Kilometers x 1000 Meters = 6000 Meters
1 Kilometer

45 Min. x 60 Seconds = 2700 Seconds
1 Min

6000 Meters = 2.22 Meters
2700 Seconds Second

7.

A: 10 meters scalar quantity, distance.

B: 1.2 meters/second² east.

C: 3.4 feet/hour and slowing scalar, speed.

D: 56 liters, scalar, none of these.

E: 2.2 miles/min east, vector, velocity.

F: 2.2 milometer’s/year, scalar, speed.

8. Relative speed = 57 Miles - 45 Miles = 12 Miles
Hour Hour Hour

12 Miles/Hour toward each other.

9. Since velocity is constant, there is no acceleration.

10. 12 Meters Per Second = 6 Meters per second² west.
2 Seconds

11. 30 Miles
Hour

12 Min. x 1 Hour = 0.2 Hours.
60 Min.

30 Miles ¸...