Determination of acceleration due to gravity using simple pendulum
To study the motion of a simple pendulum as well as determine the
acceleration due to gravity.
Given the l (length) of a simple pendulum and know
Uniformly Accelerated Motion: Object in Free Fall
This lab examines Newtons Second Law, which states that the acceleration of
an object as produced by a net force acting upon the object is directly proportional
to the ma
To study the relationship between centripetal force and speed of an object in
uniform circular motion by keeping an object moving in a constant circular path.
Newtons laws of motion state that t
PHY2048 General Education Assessment, Fall 2014
The purpose of this assignment is to test the extent to which students can organize and analyze
their understanding of physical phenomena and their applications , interpret a given physical
1. In your own words, explain the meaning of the following terms:
a. Transverse waves
Transverse wave: Wave in which the particles of the medium execute simple
harmonic motion about their mean positions in a direction perpendicular to the direct
1. Explain what is universal about the law of universal gravitation.
It is universal because every mass in the Universe attracts all other masses in the
Universe. The value of attraction is given by
Where G is Universal gravitational
1. Explain the difference between linear speed and rotational speed. Include formula
difference and how rotational speed is changed to linear speed.
Linear speed is the measure of linear distance covered by an object in a unit of time. It is
1. Define the term impulse.
Impulse is defined as a force multiplied by the amount of time it acts over.
(The change in momentum) The SI units of impulse are N*s or kg*m/s.
2. Using the principle of momentum conservation, explain what happens wh
1. Answer the following:
a. What are the units of mass and the units of weight for the metric system?
The unit of mass for the metric system is the kilogram (kg). The unit of weight for
the metric system is the Newton (N) because weight and force is equiv
1. The steps for the scientific method are listed in chapter 1. List and explain each of
the steps in the scientific method in the context of the following situation. You do not
have to resolve the question; just explain the steps for resolving
CHAPTER 4: EXERCISES 14, 33, 58 PROBLEM 3
CHAPTER 5: EXERCISES 18, 22, 24, 31 PROBLEM 1
CHAPTER 4 EXERCISES
14. Gravity on the surface of the Moon is only 1/6 as strong as gravity on the Earth.
What is the weight of a 10-kg object on the Moon and on the E
Chapter 23 Exercises
19. Why are thick wires rather than thin wires usually used to carry large currents?
Thick wires have less resistance and so they will heat up less when a large current is
passed through them. The resistance of a wire is proportional
Physics II WA6
1. Define the following terms:
a. Radioactive half-life:
Radioactive half-life of a substance is the time period during which the number of
nuclei decreases to its half.
b. Correspondence principle:
Correspondence principle states that the
1. How many calories are needed to raise 500 grams of water from 25 degrees
Celsius to 40 degrees Celsius?
Q = cm t
Q = 1*500*(40 25) = 7500 calories
2. Define the following terms:
a. Internal energy
The sum of all the energy of all the molecule
Physics II WA4
1. State and explain the postulates of the special theory of relativity.
First postulate: The laws of physics have the same form in all inertial reference
Second postulate (constancy of speed of light): Light propagates th
1. If 200 volts are put across a 300-loop transformer's primary coil:
a. What will be the voltage output if the secondary coil had 750 loops?
The voltage across the secondary Vs is related to that across primary Vp is related as
Substituting the numerical
Physics II WA2
1. Find the resistance of a light bulb that is connected to a 120-volt line and has a current of
0.5 amps flowing through it.
Resistance R = 120/0.5 = 240 ohms
2. Calculate the electrical power of a lamp that carries 2 amps of current at 12
1. In your own words, explain the difference between a conductor, an insulator,
and a semiconductor. Give an example of each to illustrate your comparison.
Conductors are substances which allow electricity to pass through them easily.
Units and Unit Conversion
Physical quantities are identified by their magnitudes and units. The unit of
a physical quantity identifies the type of quantity that is measured. In this
course we will be using SI system of units. In this system:
PHY2048 Unit 1 Assignment Show all your steps and draw diagrams where necessary. 1. A missile is aimed to hit a target 650 km away. If the missile is fired at an angle of 20o with the horizontal, what should be its launch speed so that it will hit the tar
PHY2048 Unit 5 Assignment Show all your steps and draw diagrams where necessary. 1. A 780-g mass is attached to a vertical spring and lowered slowly until the mass rests at its equilibrium position 30 cm below the original length of the spring. It is then
PHY2048 Unit 4 Assignment Show all your steps and draw diagrams where necessary. Add explanatory notes where necessary. 1. As you press down on the accelerator of your car you see the tachometer climb steadily from 1200 rpm to 5500 rpm in 2.5 s. (a) What
PHY2048 Unit 3 Assignment Show all your steps and draw diagrams where necessary. Add explanatory notes where necessary. 1. A particle oscillates back and forth in a frictionless bowl whose height is given by h(x) = 0.22x2 where h and x are meters. (a) Sho
PHY2048 Unit 2 Assignment Show all your steps and draw diagrams where necessary. Add explanatory notes where necessary. 1. A 2.0 kg ball is attached to a vertical post with two strings, one 2.0 m long and the other 1.0 m long as shown in the figure. If th
Interference of Sound Waves
Two sound waves advancing in the same medium will generate two separate displacements on the same set of particles. If the two waves are in phase, these displacements add up producing a larger displacement.
Since the loudness o
Sound Waves Sound is a form of energy transfer which needs a material medium for propagation.
Sound is propagated through solids, liquids and gases in the form of longitudinal waves. In a longitudinal wav
Harmonic Stationary Waves Let us look at the direction of displacements of the particles as a wave advances in a medium.
A particle on the crest of a wave has reached the maximum upward displacement and is now ready to move down A particle in a trough has
Harmonic Waves A wave generated by the simple harmonic vibrations of the particles of a medium is called a harmonic wave. What is the equation for the displacement of a simple harmonic motion? At t = 0 if the particle is at the equilibrium position, the d