List the steps of the scientific method in order from beginning to end.
State the problem
Make observations
Develop a hypothesis
Analyze the data
Conclusion
100
What is the difference between average speed and instantaneous speed? Give an example of each.
Average speed is the total distance divided by the total time.
Instantaneous speed is the speed at that moment.
100
Define Newton's first law.
What is another name for this law?
Give me an example.
An object at rest will stay at rest and an object in motion will stay in motion unless acted on by an outside force.
Law of inertia
100
What is Coulomb's law?
Describes the electrostatic force between objects depending on their charge and the distance between them.
100
If a wave has a high frequency, what do we know about its wavelength and energy?
High energy and short wavelength
200
What is density?
What equation do we use to solve for the density of an object?
A measure of how compact something is (mass to volume ratio)
D=m/v
200
An object travels a distance of 10 m in 5 seconds. What is its speed?
2 m/s
200
Define Newton's 2nd law.
What equation do we use with this law?
Use an example to demonstrate your understanding of newton's 2nd law.
An object will accelerate in the direction of the net force.
F=ma
200
How do you create a temporary magnet?
hold another magnet up to it and the other magnetic domains inside will align themselves with the magnetic domains in the magnet
200
List the 7 different electromagnetic waves in order from shortest wavelength to longest wavelength
Gamma, X-ray, UV, Visible, Infrared, Microwave, Radio
300
How many seconds are in 15 days?
1296000 seconds
300
Define static, sliding, and rolling friction.
Give an example of each.
Static- not moving
Sliding-moving but with some resistance
Rolling-moving with the least amount of resistance
300
Define Newton's 3rd law.
What equation do we use with this law?
What is an example of this law?
For every action there is an equal and opposite reaction.
p=mv
300
Where is the north magnetic pole located?
The south magnetic pole?
North magnetic pole = south geographic pole
South magnetic pole = north geographic pole
300
Define and give an example of refraction, reflection and diffraction.
Refraction: When a wave passes through an object and is bent as it slows down.
Reflection: When a wave hits an object and then bounces off of it
Diffraction: When a wave has to move around an object or through a narrow opening in an object
400
If you have 15 ounces of sugar, how many grams do you have?
425.15 grams of sugar
400
On Saturday afternoon, you drive 30 miles east to visit your grandma. You then drive 20 miles west and stop at your friend’s house. What is your displacement and the distance you traveled?
Distance= 50 miles
Displacement= 10 miles east
400
An object has a mass of 50kg and exerts a force of 100N. What is its acceleration?
2 m/s^2
400
What is the equation for kinetic energy?
What is the equation for potential energy?
KE=1/2 mv^2
GPE=mgh
400
What is the difference between constructive and destructive interference? Draw an example of each.
Show me your board and tell me your answer :)
500
Calculate the volume of an object that has a mass of 60g and a density of 5 g/L.
12 L
500
What two things could you do in order to increase an objects inertia?
Increase its mass or increase the force applied to the object.
500
Sally has a mass of 100 kg and is traveling at a velocity of 5m/s. What is her momentum?
500 kg x m/s
500
Describe how potential energy can be converted into kinetic energy (an example would help).
Describe one energy transformation (not including potential or kinetic energy) using the 7 types of energy we learned about.
Tell me your answer
500
Name and define the three types of mechanical waves
Transverse: wave moves at right angles to the matter
Seismic: combination of transverse and compressional waves
Compressional: wave moves back and forth in same direction as the matter