Which principal states that the buoyant force on an object in a fluid is equal to the weight of the fluid displaced by the object?
Archimedes Principal
100
What do we call any change over time?
A rate
100
What type of matter has a definite volume but no definite shape?
Liquid
100
If gravity did NOT affect the path of a horizontally thrown ball, which direction would the ball travel?
Horizontally
200
What unit is used to represent a change in thermal energy?
Degrees Celsius
200
What determines whether an object will sink or float in a fluid?
The mount of buoyant force
200
True or false: instantaneous speed is the total distance traveled divided by the total time of travel?
False
200
The amount of energy needed to change a material from a liquid to a gas is called the heat of _______________?
Vaporization
200
Calculate the force on an object that has a mass of 12kg and an acceleration of 4m/s.
48N
300
In the lab, what tool do we use to measure mass?
A Triple Beam Balance
300
A small stone dropped into a graduated cylinder causes the water level in the cylinder to rise from 18mL to 22mL. What is the volume of the stone?
4mL
300
A roller coaster starts down a hill, it's speed is 10m/s. Two seconds later, it's speeds to 32m/s at the bottom of the hill. What is the coaster's acceleration?
11m/s^2
300
What does the kinetic theory of matter state?
Matter is made up of small particles that are in constant motion.
300
Which of Newton's Laws explains the the relationship among force, mass, and acceleration?
Newton's Second Law
400
List these from largest to smallest:
hectometers, millimeters, centimeters, kilometers, meters
What is the density of the acid in a car battery if 200mL of the acid has a mass of 240g?
1.2g/mL
400
Sound travels at 330m/s. You hear the sound of the bat hitting a homerun .5 seconds after you see it. How far away from the batter are you?
165m
400
As the temperature of a gas increases, what will happen to the volume of the gas if the pressure remains the same?
The volume of the gas will increase.
400
A 300N force acts on a 30kg object. What is it's acceleration?
10m/s/s
500
Identify what the following are units of:
m/s^2
kg
N
m/s
acceleration
mass
weight (force)
average speed
500
A stone was lowered into a graduated cylinder
holding a volume of water equal to 20.0mL. The height of the water rose to 30.2mL. If the mass of the stone was 25.09, what was its density?
2.45g/mL
500
A person in a head-on collision, who is not wearing a seat belt, continues to move forward at the original speed of the car because of ________________?
Inertia
500
Which of the following is NOT an example of a physical change?
boiling water
rusting nail
cooking an egg
Rusting nail
500
A 25kg object accelerates at 2m/s/s. What is the object's force?