Skills
8.854x10-12 A2s4kg-1m-3
What is the electric permittivity constant according to the datasheet?
It is the study of motion without considering its causes.
What is "kinematics"?
An object will remain in its state of rest or motion unless a net force acts upon it.
What is Newton's First Law?
It is a disturbance that transfers energy from one place to another.
What is a wave?
Like charges repel.
What force does a charge exert on a like charge?
We need to remember they have both direction and magnitude!
What do we need to remember about vectors when we do calculations?
They are both rates of change of some aspect of an object's motion with respect to time.
How are velocity and acceleration similar?
It is the product of force on an object and time in a collision, or equally, it is the change in momentum of an object having a collision.
What is impulse?
This is the effect that occurs when two waves occupy the same space and their amplitudes add.
What is superposition?
In the same direction as the force experienced by a small, positive test charge placed at that point.
What direction does the electric field point?
Relate cause and effect, or provide reasons why and/or how.
What does "explain" mean?
The slope of this graph represents the acceleration of the object.
What is meant by the slope of a velocity/time graph?
These exist for momentum, total energy, and even particular forms of energy in specific situations. They are especially useful for analysing changes in motion because they tell us that what existed before a change also exists after.
Why are conservation laws useful?
It stands for the amount of heat (energy) gained by an object.
What does Q stand for?
These laws apply conservation of charge and conservation of energy to circuits.
What do Kirchhoff's Laws do?
We would have to use both Pythagoras' Theorem and trigonometry.
What mathematics do we need in order to resolve a vector into its components?
Or
What mathematics do we need in order to add perpendicular vectors?
To calculate this we would have to subtract one object's velocity from the other's, vector-wise.
How could we calculate the relative velocity of one object to another?
It is always opposed to the direction of motion or other forces.
What direction is the friction force always directed?
The following conditions must be met:
-the light tries to pass into a less dense medium than the first
-the angle of incidence exceeds the critical angle
What conditions must be met for total internal reflection to occur?
In this rule, the fingers represent the direction of current and the thumb indicates the direction of the north pole.
What is the right-hand solenoid rule?
What truths apply to the construction of field line drawings?
-They must not cross.
-Their density is related to strength.
-Their direction is related to force.
What is the height of a cliff if a rock dropped off it takes 5.00s to hit the bottom?
123m
If a 40kg stationary sledge is pushed for 20m along a frictionless, horizontal ice rink with a force of 50N, What is its final speed?
7m/s
What is the frequency of sound that a stationary observer hears when an ice cream truck drives towards them at 20.0m/s, playing a 456Hz note?
485Hz
What force does one electron exert on another electron 1.0 mm away?
2.3x10-22N