Module 2 - 6
A person who is 5 feet 4 inches tall would be?
1.6 m
What is the mas in kg of a 22 lb turkey?
10 kg
What is the mass of a 15 cm cube of iron if the density of iron is 7.87 g/cm³?
26.56 kg
How many ounces are in 1,500 grams?
53 Oz
Which variable is measured on the vertical axis?
Dependent Variable
What do you do to test a hypothesis?
Design an experiment
All scientific measurements should NOT use the metric system
False
Experiments are usually conducted one time and by one team to speed up the scientific process.
False
Graphs make it harder to understand complex patterns by displaying data in a visual manner
False
In Density formula, d=m/v, m stands for meter?
False
In the formula d=m/v, m stands for volume
False
What is the decimal equivalent of the prefix centi-?
One- hundredth
The formula to determine volume of a cylinder is
Pi r2h
A control group is used as a comparison to the group where things (variables) are changing.
True
Density is the amount of matter, or mass, per unit volume.
True
Density of water is 1g/ mL.
True
Graph is a pictorial representation that tells the relationship between 2 variables
True
If Density of Ether is 0.7g/ mL, that means ether has less density when compared with water?
True
In its simplest form, an experiment is simply the test of a hypothesis.
True
Line graphs often show how a relationship between variables changes over time
True
Scientists often graph their data to detect patterns that would not have been evident in a table
True
Scientists use graphs to show results from their research studies
True
The scientific method is the basis for experimentation and scientific research.
True
The scientific method was developed to help scientists organize the process of solving problems.
True
To create a circle graph, you start with the total of what you are analyzing
True
A factor in an experiment that can change is a(n)____.
Variable
What is the volume of 65 mL in liters?
0.065 L
How many quarts of orange juice are in 255 mL of juice?
0.270 qt
294 mm is equal to?
0.294 m
Three liquids have densities of 1.15 g/mL, 0.79 g/mL and 0.95 g/mL. When the liquids, which do not mix, are poured into a graduated cylinder, the liquid at the top is the one with a density of:
0.79 g/ mL
A sample of oil has mass of 65 g and a volume of 80.0 mL. What is the specific gravity of the oil?
0.81
What is the density of a piece of wood that has a mass of 25 grams and volume of 29.4 cm3?
0.850g /cm3
What is the density of a bone with a mass of 192 g and a volume of 120 cm3
1.6 g/mL
Which is a conversion factor for the millimeters to centimeters?
10 mm/cm
What is the mass of a 450 cm³ block of silicon if the density of silicon is 2.336 g/cm³?
1051.2 g
The handle on a tennis racket measures 4.5 inches. What is the size in centimeters?
11 cm
Which of the following is the conversion factor?
12 in/ft
Ethyl alcohol has a density of 0.790 g/mL. what is the mass of 0.250 L of the alcohol?
198g
You have a rock with a volume of 30 cm3 and a mass of 60 g. What is its density?
2 g/cm3
A brick of salt measuring 10.0 cm x 10.0 cm x 2.0 cm weighs 433 grams. What is its density?
2.165 g/cm3
A solid ball has a mass of 50 grams and a volume of 20 cm3. What is the density?
2.5 g/cm3
The number of milliliters in 2 deciliters is?
200 mL
Calculate the mass of 30.0 ml of methanol, given the density of methanol is 0.790 g/ml
23.7 g
A solid cylinder has a radius of 2 cm and a length of 7 cm. It has a density of 3.1 g/cm3. What is the mass of the cylinder?
272.69 grams
The density of water is 1 g/ml. What mass does 30 ml of water have?
30g
Calculate the density of a ruby, which has a volume of 1.6 cm3 and a mass of 6.7g.
4.1875 g/mL
Calculate the mass of a liquid with a density of 3.2 g/mL and a volume of 25 mL.
80g
If the density of paraffin oil is 0.8 g/cm3, what will be the mass of 10 cm3 of paraffin oil?
8g
Which volume unit is the largest?
kL
A _________graph can show any relationship where the dependent variable changes due to a change in the independent variable
line
g/mL is the unit for
liquid
The slices of a pie graph represent the parts and usually are represented as______of the total
percentages
If the results of an experiment turn out differently from what you expected, then:
you should explore the possible reasons for this in the 'conclusions' section of your experimental write-up.
Which is a conversion factor that relates milliliters to liters?
1000 ml/L
A block of aluminum occupies a volume of 15.0 mL and weighs 40.5 g. What is its density?
2.7 g/ mL
You have a rock with a volume of 15 cm3 and a mass of 45 g. What is its density?
3 g/cm3
A piece of wood has a mass of 35 grams. If its volume is 7 cm3, What is its density?
5 g/cm3
If the mass is 100 g and volume is 2 cm3, what is the density of the object?
50 g/cm3
The density of pure solid copper is 8.94 g/mL. What volume does 5 kg of copper occupy?
559 ml
A hypothesis is...
An educated guess
What kind of graph is useful for comparing information collected by counting?
Bar Graph
Calculate the density of sulfuric acid if 35.4 mL of the acid weighs 65.14 g.
Calculate the density of sulfuric acid if 35.4 mL of the acid weighs 65.14 g.
A_______is used to show how some fixed quantity is broken down into parts
Circle Graph
The formula to determine volume of a rectangular object is
Length X Width X Height
g/mL is the unit of Density for
Liquids
Which of these would be called results?
Number of fruit flies
Which of these is not a step of the scientific method?
Plagiary
If you have a control group for your experiment, which of the following is true:
The control group is identical to each test group except for one variable.
Different kinds of graphs line, bar, and circle are appropriate for displaying different types of information
True
Formula for Density is m/v?
True
In a bar graph, the independent variable is plotted on which axis?
X- Axis
The horizontal axis that is used to plot a graph is called
X-Axis
The vertical axis in a graph is called
Y- Axis
Which of the following is most correct:
You can accept or reject a hypothesis, but never prove it to be true.
Which of the following sets of apparatus would be most suitable for experimentally determining the density of a liquid?
beaker, balance, measuring cylinder and pipette
The unit for Density of Solids is
g/cm3
The unit of Density of Liquids is
g/mL
graphs often show how a relationship between variables changes over time
line
The first step of the scientific method involves:
making observations.
The formula for Density is
mass/volume
Which of the following is the smallest unit of measurement?
milligram
A well-substantiated explanation of an aspect of the natural world is a:
theory
