Final Exam Review - Units 6, 7

How many sigs does the following number have? 0.0008010

• 3

• 4

• 7

• 2

Suppose you are pushing a car with a certain net force. If you then push with twice the net force, the car's acceleration will...

• be cut in half

• double

• quadruple

• stay the same

Displacement...

• measures the path taken

• measures the change in an object's position

• is always the same as distance

• is never the same as distance

What is the sig fig rule when multiplying or dividing numbers?

• The number with the fewest sig figs tells how many sig figs should be in the answer

• The number with the most sig figs tells how many sig figs should be in the answer

• The number with the most digits to the right of the decimal tells how many sig figs should be in the answer

• The number cannot have any sig figs to the right of the decimal

What is the answer to the following problem? Use sig figs!

44.8 + 3.15 + 4.23

• 52.18

• 52.1

• 52.

• 52.2

Use the ladder method to solve:

4528 cm = _____ km

• 4.528 km

• 45.28 km

• 0.04528 km

• 452,800,000km

Use the Factor-Label Method to solve:

86 hours = ____ seconds

• 10,320 seconds

• 309,600 seconds

• 5,160 seconds

• 146 seconds

How can you tell if something is in motion?

• Its position does not change when comparing it to a frame of reference.

• You can never be sure something is moving.

• Everything is always moving.

• Its position changes when comparing it to a frame of reference

Distance..

• measures the path taken

• measures the change in an object's position

• is always the same as displacement

• depends on mass

Speed is the distance traveled in a certain time and in what _________.