Thermal
Define Radiation!
Transfer of heat in the form of waves (not the ocean waves).
If an atom has 700 protons, 300 neutrons, and 699 electrons, what is the net charge?
The Net charge is Positive (+)
Formula for voltage
V=IR
An object at rest will stay at rest unless acted upon by an unbalanced force. / An object in motion will stay in motion with the same speed and direction unless acted upon by an unbalanced force.
How do you know if scientific data is VALID?
If the only thing that is changed (in the experiment) is the independent variable.
Define Convection!
A process by which heat is transferred by movement of a heated fluid (a liquid or gas).
What are two ways to turn gas into plasma??
Pump the gas with electricity / Add thermal energy
Why can't a semi-truck accelerate as fast as a small car?
Because of Newton's 1st law of motion. Inertia
Explain Newton's 2nd law of motion!
Increasing the net force on an object will increase the acceleration. /An object with more mass will have more inertia, ex: A truck is harder to speed up than a pick-up.
How do you know if scientific data is RELEVANT
If the dependant variable is measured correctly with no errors.
Define Conduction
When heat is transferred by direct touch
In a series circuit, the current should be exactly the same throughout the whole wire. Why isn't this true for parallel circuits?
In a parallel circuit, each light offers less resistance than in a series circuit, so the current flowing will be higher
What is the specific heat capacity for water? (You can use the notes)
4.2 J/g Celsius
What is the formula for Acceleration?
a=F/M or F=MA
How do you know if scientific data is RELIABLE?
When the experiment or data has minimal errors (not none, but minimal).
What is Thermal Expansion?
Is when matter changes due to temperature!
In this class, we've looked at flashlight generators that can be shaken to induce an electrical current. How do industrial power plants supply their generators with mechanical energy?
They use flowing steam, water, or air to spin a turbine.
She is likely to chase him around the classroom till he drops in tiredness.
What is a reaction force??
A force that only shows up in response to an action of an applied force. Ex: Inertia to Acceleration.
How do you know if data is sufficient?
When the data has multiple trials.
The average measurement of particle movement!
A student reads that a number of electrical devices utilize electromagnets. Some of these devices require strong magnetic fields. The student decides to investigate how to increase the strength of a basic electromagnet.
How can the student test whether the magnetic field produced by an electromagnet is increasing in strength?
A stronger magnet will attract a greater number of metallic items.
What is the difference between a series circuit and a parallel circuit?
Opinionated response
What will a ticker-tape graph show if the object is accelerating?
Short spaced dots to gradually larger spaced dots.
. . . . . . .
What is the difference between independent and dependant variables?
An independent variable is a changeable variable in an experiment. A dependent variable is what changes in response to the independent variable.