1010
General learning goals.
1.
Develop the capability to analyze, explain, and predict the motion of objects in
the world around you.
2.
Understand the properties and motion of electric charges and use this knowledge
to predict and explain various aspects of electricity.
3.
Understand the properties and applications of electromagnetic waves and predict
behaviors.
4.
Recognize that the behavior of the world around you is not magical and
mysterious, but rather can be understood and predicted using certain fundamental
principles.
5.
Understand that these principles are determined and confirmed by careful
experiments.
1010
Detailed learning goals.
·
Be able to use metric and English
units of measure for velocity, acceleration, time, force, and energy.
·
Be able to define speed, velocity,
and acceleration, and, given a graph or detailed description of a car’s
position versus time, describe its motion identifying its speed, velocity,
and acceleration. Given a
description of a car or other object’s motion, be able to make a graph of
these quantities versus time and explain how they are related.
·
Be able to apply x =vt + 0.5 at2
and v = v0 +at to the motion of an object that is moving with
constant acceleration. Be able to calculate unknown quantities of the motion using
these equations.
·
Be able to calculate the mass m
of an object of given its weight, and vice-versa. (W = mg).
·
Use the idea that the force on an
object is related to its motion by force equals mass times acceleration (F =
ma). For example, be able to
use this to predict motions for various real world situations, including: a)
recognizing that if there is no F, there must be no a, so v
is unchanged; b) find a for known F and m; c) find F
to produce desired a or desired stopping time or distance of vehicles.
·
Relate forces on objects to the
distances they travel and speeds they attain using the above ideas, and use to
predict motions.
·
Using Newton’s III law, predict
how two objects will react in a collision given the motion before the collision,
for collisions between various objects such as cars and people.
- Predict
the force and work needed to push carts up ramps of given angle (including
lifting straight up). Figure
out what ramp angle is needed to move objects of a given mass uphill with a
particular force.
- Predict
the amount of energy gained in coasting down ramps of any steepness, and
corresponding speed of the object at the bottom.
- Use
conservation of energy to predict how high an object will go if thrown up
with particular speed, or with a particular amount of work, or a particular
force over a distance while being thrown.
- Predict
the amount of thermal energy/heat produced in stopping a moving or dropped
object.
the following 7 items are applications of
the above ideas about how objects move.
- spring
scales- be able to explain how scales work.
Be able to design and calibrate a scales.
- water
distribution- be able to predict the water pressure and flow velocity at
various points in a water distribution system.
Be able to explain a water distribution system and the function of
the different elements such as water towers and pumps.
- Predict
the time dependence of the motion of an object on a spring, and explain how
this is related to the operation of balance wheels.
- Calculate
the distance from GPS satellites using the timing of pulses received from
them.
- Predict
how the sound produced by a violin changes with the tension, fingering, and
mass of the string being bowed.
- Predict
how the sound from an organ pipe will change as the length of the pipe is
changed.
- Predict
the forces exerted between electrically charged objects using Coulomb’s
law.
- Predict
the energy gained by charged objects when voltage is applied to them.
- Design
an electronic air cleaner for a smokestack from basic electrical components
(wires, power supplies, metal plates).
- Explain
how rubbing a balloon will cause it to stick to a wall.
- Explain
why socks stick together coming out of drier and why dust is attracted to
certain objects.
- Explain
lightening and the sparks produced when you shuffle your feet on a rug, and
explain how this can be avoided with a lightening rod or by carrying a sharp
metal object.
- Predict
the current flow and voltage distribution in simple electrical circuits
involving batteries, wires, and resistors.
- Predict
the electrical power dissipated in the components in simple electrical
circuits involving batteries, wires, resistors, and light bulbs.
·
Be able to evaluate and minimize
the danger of electrocution for various situations.
- Predict
how the spectrum and the amount of radiation from an incandescent light bulb
or any other hot object will change with temperature.
- Provide
a basic design for an incandescent light bulb and explain the function of
the different components.
- Explain
the basic structure of an atom and relate it to the color of light produced
by discharge lamps and the operation of a florescent light.
- Design
a florescent light bulb and explain the requirements on the various basic
components.
- Explain
the different efficiencies of conversion of electrical energy into visible
light of incandescent lights, florescent lights, and sodium vapor street
lights.
- Explain
the greenhouse effect and why it depends on the temperature dependence of
thermal radiation.
- Predict
the optimum orientation and antenna length for receiving a particular radio
station.
- Explain
how radio signals are produced and detected and what the different positions
on the radio tuning dial mean.
- Predict
how readily various substances will be heated in a microwave oven and which
are unsafe to put in the oven.
- Design
a microwave oven chamber that will contain the microwaves, allow one to
safely see inside, and have walls that do not get hot.
- Explain
the uneven pattern of heating inside a microwave oven.