Other Physics Answers

For this learning task, you will investigate the motor principle using the interactive below. Follow the steps below.

Note the direction of the current flow and magnetic field in the interactive. Use the motor principle to predict which way the wire will deflect. You are encouraged to use Fleming’s left hand rule and/or the right hand rule for motors as aids as to make your prediction. Record your prediction with an explanation.

Observe the direction of the motor force in the interactive. Record the result and apply the motor principle to explain it.

Repeat steps 1-2 to predict, explain, observe, and explain the direction of the motor force when the magnet is reversed, the battery is reversed, and both the magnet and battery are reversed.

For this learning task, you will determine the shape and direction of the magnetic field surrounding a bar magnet, horseshoe magnet, straight conductor, and solenoid using an interactive simulation.

Select the bar magnet, horseshoe magnet, straight conductor, or solenoid to work with.

Draw a diagram of the object you are working with.

Place the compass in a location around the object and record the direction of the magnetic field on your diagram.

Repeat step 3 as necessary so that you have a complete picture of the shape and direction of the magnetic field surrounding the object.

Repeat steps 2-4 for the other three objects.

Once you have created the four diagrams, create two more that use the right hand rules to determine the direction of the magnetic field surrounding the straight conductor and solenoid if the current flow were to be reversed.

For this learning task, you will demonstrate your ability to solve problems using Ohm’s Law. Make sure to communicate your solutions using the GRASP approach for each question and state your final answer with the correct units and number of significant digits.

Be wary of given units like mA and kΩ – make sure to convert these to A or Ω before applying Ohm’s Law to solve the problem.

A 330 Ω resistor has a current of 11 mA flowing through it. What is the voltage drop across the resistor?

A 2.2 kΩ resistor has a voltage drop of 12 V across it. What is the current flowing through the resistor?

A resistor has a voltage drop of 8.4 V across it and a current of 150 mA flowing through it. What is the resistance of the resistor?

A galvanometer of internal resistance 100Ω gives a full scale deflection for a current of 10 mA. Calculate the values of the resistance necessary to convert the galvanometer to an ammeter reading up to 10 A

A galvanometer of internal resistance 100Ω gives a full scale deflection for a current of 10 mA. Calculate the values of the resistance necessary to convert the galvanometer to a voltmeter reading up to 5 V

A CF-18 jet fighter flying at 350m/s engages it’s afterburners and accelerate at a rate of 12.6 m/s² to a velocity of 600 m/s. How far does the fighter jet travel during acceleration?

Inside a recital hall, a musician plays a well-known song from the guitar repertoire

to the delight of audience members. A C-major chord is played. Subsequently, the

corresponding sound wave, consisting of frequencies 130.8 Hz, 164.8 Hz, and 196 Hz,

arrives at a listener's eardrum. Describe what subsequently takes place in the middle

ear and in the inner ear (on the basilar membrane) before the nervous system begins

processing the stimulus.

Ari dropped a golf ball from her second story window. The ball starts from rest

and hits the sidewalk 1.5 s later with a velocity of 14.7 m/s. Find the average

acceleration of the golf ball.