IS2 - Spring 2022 Final

Last updated over 3 years ago
40 questions
Section 1 - Conservation of Energy & Power
1

At what point does the object have the most potential energy?

1

As Bob jumps off the couch, his potential energy equals 50 J. What is his kinetic energy if his total mechanical energy is still 150 J?

1

If the power rating of a incandescent light bulb is 60 Watts, then how much time does it take the light bulb to run to acheive 120 J of work?

2

Someone wearing skates on a horizontal surface is pushed by a friend with a force of 65 N. How far must the student be pushed in 30 seconds, so that her power is 352 W?

1

If it took the quarterback in the last problem 0.2 [s] to throw the football, what is the quarterback's power rating?

1

In which of the following is potential energy being transformed into kinetic energy?

1

Consider an object falling from a height of 300 m. If we ignore air resistance, its total mechanical energy:

Section 2 - Electricity and Circuits
1

Which of the following is a subatomic particle with a negative charge which is found on the outside of an atom?

1

Unlike charges will repel one another.

1

Which of the following options is the best conductor of an electrical current?

6

Match the circuit diagram to the element it represents

Draggable itemCorresponding Item
Battery
Light Bulb
Switch
Resistor
Voltmeter
Ammeter
1

Which of the following descriptions best describes the circuit in the picture?

1

Which of the following descriptions best describes the circuit in the picture?

3

Match the unit of measurement to the quantity it measures.

Draggable itemCorresponding Item
Amperes, [A]
Resistance to charge flow.
Volts, [V]
Electrical current
Ohm, [Ω]
Voltage
1

Study the circuit above and answer the following question.

If an ammeter were placed in the same branch of the circuit as the bulb labelled #3, what current would it read?

1

Study the circuit above and answer the following question.

If an ammeter were placed after the junction after the bulb labelled #2, what current would it read?

1

What is the voltage across an electrical load which has a resistance of 39 Ohms and which has a current of 3 Amperes flowing through it?

1

A smartphone is connected to an external 24 Volt power supply. Calculate the current that the phone draws if it has a resistance of 8 Ohms.

1

A blender is connected to a 120 Volt power supply, and draws a current of 11.5 Amperes. What is the blender's resistance?

Section 3 - Magnets and Electromagnetism
Required
1

If a magnet with two poles is cut in half, it will have only one pole

Required
1

All metals are magnetic.

Required
1

Similar poles of a magnet repel each other.

Required
1

A magnetic force cannot act on an electron when it moves...

Required
1

The north-seeking arrow of a compass points to the magnetic north pole.

Section 4 - Waves
1

What is the lowest point of a wave called?

1

The regions of a wave where the particles are the CLOSEST together in a longitudinal wave are called

1

The measurement from crest to crest or from trough to trough is called what?

1

What is the unit for frequency?

Use the diagram of a wave below to answer questions 29-30. Assume each box is equal to 1 meter.

1

What is the wavelength (in m) of the wave above if each box is 1 meter long?

1

What is the amplitude (in m) of the wave above?

1

What is the frequency for a wave that has a velocity of 20 m/s and a wavelngth of 4 m?

1

Longitudinal waves ...

1

Refraction is . . .

1

The law of reflection states that . . .

Section 5: Space
Required
2

Order these astronomy vocabulary from the largest object to the smallest:

  1. universe
  2. solar system
  3. planet
  4. galaxy
Required
1

As far as we know, there is only one of these. We've only been able to observe approximately 4% of its entire volume.

1

A light year is the distance that light can travel in a year.

Required
1

Which galaxy do we live in?

Required
1

Compared to the earth's solar system, the universe is:

Required
2
As the star approaches the observer, the star appears __________. This phenomenon is called a __________ star.