Timeraptor
(CH. 1)
A quantity having both magnitude and direction is this.
What is a vector?
This is the force acting on a body whose magnitude is determined by something's mass and the strength of the gravity of the object they are standing on.
What is weight?
The two factors that determine the strength of gravity between objects are these.
What are masses of the objects and distances between their centers of mass.
This is a physical property of matter that causes it to experience an electric force, which can be either positive or negative.
What is electric charge?
This type of energy is represented by the following formula:
What is gravitational potential energy?
This is a measure of the average kinetic energy of particles in matter.
What is temperature?
The superposition of two waves that are out of phase with each other in such a way as to produce a smaller wave or cancelling each other out entirely is this type of interference.
What is destructive?
This is something you can hold without ever touching or using your hands.
What is your breath?
This table would represent this kind of motion.
What is uniform motion?
This is a brief description of Newton's Third Law of Motion.
What is equal and opposite reactions?
This is an oval shape described by the following formula.
What is an ellipse?
When you double the distance between two charged particles the magnitude of the electric force between them decreases by this many times.
What is four times?
A boiling pot of water without a lid would be this kind of system.
What is an open system?
This is the measure of chaos in a system.
What is entropy?
The apparent change in frequency caused by either the source of the waves moving, the observer moving, or both moving at different velocities is this.
What is the Doppler Effect?
Give it food, and it will live; give it water, and it will die. It is this.
What is fire?
A ball rolls down a frictionless ramp with a constant velocity. Its acceleration over three seconds is this.
What is 0 m/s2.
The equation F=ma describes this.
What is Newton's Second Law of Motion?
Earth orbits the sun at a lower velocity than Mercury. This is because Mercury is this:
(less massive, closer to the sun, or both of these things)
What is closer to the sun?
The measure of how much a unit amount of material opposes the flow of electric current is this.
What is resistivity?
A boiling pot of water with a lid would be this kind of system.
What is a closed system?
This law states that heat flows from a warmer object to a cooler object until both objects reach thermal equilibrium.
What is the second law of thermodynamics?
Two waves are compared. A has a higher frequency. B has a lower frequency. The wave with the shorter wavelength is this.
What is A?
A plane crashes on the border of the U.S. and Canada. The survivors are buried here.
Where is nowhere?
A 300 kg boulder is pushed off a cliff with velocity v = (25.0 m/s)x̂ + (5.00 m/s)ŷ. The object will experience this larger type of acceleration (between vertical and horizontal).
What is vertical?
This is described by the simple formula p = mv.
What is momentum?
Two objects have a gravitational force between them of 10,000 N. You double the distance between them. The force becomes this.
What is 2,500 N?
This is represented by the following equation.
What is Coulomb's Law?
This is the concept represented by the following equation.
What is conservation of energy?
This is a device that moves thermal energy from a cooler region to a warmer region, consuming work.
What is a heat pump?
This is represented by the following formula.
What is a distance graph for a wave?
Turn me on my side and I am everything. Cut me in half and I am nothing. I am this.
What is the number 8.
A projectile is thrown. This graph would represent which piece (position, velocity, or acceleration) of which dimension of motion (vertical or horizontal)?
What is horizontal acceleration?
Someone is pushing a piece of furniture across the floor with a force of Fpf. A friction force is counteracting this force with an equal and opposite magnitude pointed in the opposite direction. These two forces are an example of this.
What is a third law pair?
The following equation represents this.
What is orbital velocity?
These are the fundamental forces/interactions in order from strongest to weakest.
What is nuclear strong force, electromagnetism, nuclear weak force, gravity?
This is:
1) one way DECREASE gravitational potential energy, and
2) one way to INCREASE elastic potential energy.
What is:
1) reduce one or both masses, decrease distance.
2) stretch spring further from resting position, use a stronger spring (higher spring constant).
This is the energy needed to melt or freeze 1 kg of a substance, where the value is negative when freezing occurs.
What is the heat of fusion?
Waves A and B resonate with each other with amplitudes of 2A and 4A. The resulting wave's amplitude is this.
What is 6A?
This is special about these words: job, polish, herb.
What is that they are pronounced differently if the first letter is capitalized?