Lesson 1: Introduction

Question 1

What are the Four Dimensions we will use in this physics class?

Answer 1

Length, Mass, Time, Temperature

Question 2

What is dimensional analysis used for?

Answer 2

Used to determine dimensions of a quantity, determine if an equation is dimensionally correct

Question 3

What must be true for a dimensional analysis to be valid?

Answer 3

One side of the equation is equal to the other side

Question 4

What are units?

Answer 4

Allow us to measure physical quantities

Question 5

What are the units we use for the four dimensions in this class?

Answer 5

Length - meters
Mass - kilograms
Time - seconds
Temperature - degrees Celcius

Question 6

How many centimeters are there in 1 meter?

Answer 6

100 cm

Question 7

How many meters are in 1 kilometer?

Answer 7

1000 m

Question 8

How many meters are in 1 mile?

Answer 8

1609 m

Question 9

How many grams are in 1 kilogram?

Answer 9

1000 g

Question 10

How many seconds are in a minute?

Answer 10

60 s

Question 11

How many seconds are in one hour?

Answer 11

3600 s