By the end of this lesson, I will be able to:
Explain the following terms: significant figures, accuracy, precision,
Record measurements to the correct number of significant figures.
Evaluate the accuracy and precisi
Activity 1.4: Phase Changes
Most substances go through a phase change when heated or cooled.
Molecules of a substance are held together in either the solid, liquid, or gaseous
phase by intermolecular forces. It is necessary to discuss w
Classification of Matter
How do atoms combine to make different types of matter?
Look at the things in this room. They are all matter. That matter may be pure or it may be a mixture. Can
you tell by looking at it? What if you looked at it under a
Worksheet 1.5: Quantitative Energy Problems
For each of the problems sketch a warming or cooling curve to help you decide which equation(s) to
use to solve the problem. All answers must include units and the correct number of significant figures.
Test Review: Chapters 39 and 35
1. What happens in the body when adrenaline is released by the endocrine system?
Faster and stronger heartbeat
Constriction of skin blood vessels
Dilation of skeletal muscle blood vessels
Breakdown of glycogen in the liver
1. The Washington Monument is 555 feet tall.
A. (555 ft)/(3.28 ft) = 169.21 meters
B. Mass: 0.005 kg
Gravity: 9.8 m/s/s
Height: 169.21 m
GPE: (0.005kg)(9.8 m/s/s)(169.21m)
C. M = 0.005 kg
V = 0 m/s
KE = (0.005 kg)(0 m/s)
KE = 0 J
D. The GPE wil
When you roll a boulder off a cliff
The purpose of this lab, after rolling a ball down an incline on a table and letting it roll off
the table, is to find the initial velocity of the ball after it has left the edge of the table
using a velocity g