3 Question 1 (Marks: 20) On a straight‚ flat section of road‚ a car follows a truck. Initially (t < 0)‚ both are travelling at speed v0 = 90 k.p.h. The truck maintains constant speed throughout. The car is initially 2.0 seconds behind the truck‚ i.e. for t < 0 the car
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Impact Of a Jet Introduction: Over the years‚ engineers have found many ways to utilize the force that can be imparted by a jet of fluid on a surface diverting the flow. For example‚ the pelt on wheel has been used to make flour. Further more‚ the impulse turbine is still used in the first and sometimes in the second stages of steam turbine. Firemen make use of the kinetic energy stored in a jet to deliver water above the level in the nozzle to extinguish fires in high-rise buildings
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Module 2 Exam Review -Please note the number in parenthesis is the lesson the answer can be found in./ 1. What is the study of motion called? (2.00) 2. All motion is relative to what? (2.01) 3. Define instantaneous and average speed and give examples. (2.01‚ 2.02) 4. Look at the graph below; be able to explain what quantity is the slope of a “Position versus Time” represents what the average speed for the first hour is‚ what distance is covered during each time interval‚ and what a horizontal
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Midterm Review Name: ______________________________ Date: ___________ Circle Period R1 R2 R3 S1 S2 S3 Chapter 1 – About Science Vocabulary: Define each term. Fact: Hypothesis: Law: Theory: Check Concepts: 1. Why is physics the most basic science? 2. Why is mathematics important to science? 3. Is a scientific fact something that is absolute and unchanging? Defend your answer. Chapter 2 – Mechanical Equilibrium Vocabulary: Define each term. Force: Net Force: Vector:
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ONE-SCHOOL.NET Physics Equation List :Form 4 Introduction to Physics Relative Deviation Relative Deviation = Mean Deviation ×100% Mean Value Prefixes Prefixes Tera Giga Mega Kilo deci centi milli micro nano pico Units for Area and Volume 1 m = 102 cm 1 m = 10 cm 2 4 2 Value 1 000 000 000 000 1 000 000 000 1 000 000 1 000 0.1 0.01 0.001 0.000 001 0.000 000 001 0.000 000 000 001 Standard form 1012 109 106 103 10-1 10-2 10-3 10-6 10-9 10-12 Symbol T G M k d c m μ n p (100 cm) (10
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position and velocity are displayed under the time. Click Start again and write down at least 2 observations about this simulation below. Activity 2: Click the Show Grid box and make sure that System Centered and Show Traces are checked too. Drag the slider bar all the way to the left for the most accuracy. Click Reset‚ then change Body 1’s mass to 500 and its x and y position and velocity to 0. Change Body 2’s mass to 30‚ its x position to 200‚ and y position and x and y velocity to zero. Reset
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is moving in a straight line with initial velocity u and retardation αv‚ where v is the velocity at any time t [a] the particle will cover a total distance u/α [b] the particle will come to rest after 1/α [c] the particle will continue to move for a very long time [d] the velocity of the particle will become u/2 after time 1/α Q.2 A particle moves along the xaxis as x = u(t-1)2 + a(t-3)3 [a] initial velocity of the particle is u [b] the acceleration
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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Prandtl’s mixing length theory . . . . . . . . . . . . . . . . . . . . . . . . . Fluid shear stress and friction velocity . . . . . . . . . . . . . . . . . . . . Classification of flow layer . . . . . . . . . . . . . . . . . . . . . . . . . . . Velocity distribution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1 4 5 7 9 Ch´zy coefficient . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 e Drag coefficient
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Q.1 Q.8 (a) (a) Name three Muslim scientists? (3) Fill in the blanks:(1) (viii) The dimension of any physical quantity can always be expressed as some combination of the fundamental quantities. 1995 Q.1 (c) What are the dimensions of angular velocity “ω”? Show that the equation √ is (3) (1) dimensionally correct‚ where “T” is the time period of a simple pendulum of length “ ” at the place where acceleration due to gravity is “g”. Fill in the blanks:(v) Candela is the unit of intensity of light
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Q2: What do you mean by a body in rest? Answer: A body is said to be at rest‚ if it does not change its position with respect to a fixed point in its surroundings. Q3: Are motion and rest absolute or relative? Explain with an example. Answer: No these terms rest and motion are relative. For example‚ a person inside a car‚ carrying a ball in his hand will see the ball is at rest. While for another person‚ outside the car will see the ball is also moving. Q4: What is meant by scalars and
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