Download The exam includes the following: PART A: 35 multiple choice ( 1

Egyptian American International School
The Science Department 2015-2016
MID YEAR EXAM STUDY GUIDE
Gr. 9 Physical Science
The Exam Duration 2 Hours
The exam includes the following:
 PART A: 35 multiple choice ( 1 point each)
 PART B: 15 Complete with a word bank provided ( 1 point each)
 PART C: 10 True OR false ( 1 point each)
 PART D: 10 Matching ( 1 point each)
 PART E: 15 short essay question solved ( 2 points each)
 PART F: problems to be solved ( 10 points )
 PART G: Bonus question ( 5 points)
Material included in the exam:
Chapter 5: Matter in motion
MAIN POINTS:
SECTION 5.1 Three States of Matter
 Describe the motion of an object by the position of the object in relation to a reference point.
 Identify the two factors that determine speed.
 Explain the difference between speed and velocity.
 Analyze the relationship between velocity and acceleration.
 Demonstrate that changes in motion can be measured and represented on a graph.
SECTION 5.2 What Is a Force?
 Describe forces, and explain how forces act on objects.
 Determine the net force when more than one force is acting on an object.
 Compare balanced and unbalanced forces.
 Describe ways that unbalanced forces cause changes in motion.
SECTION 5.3 Friction: A force That Opposes Motion
 Explain why friction occurs.
 List the two types of friction, and give examples of each type.
 Explain how friction can be both harmful and helpful.
SECTION 5.4 Gravity: A force Of Attraction
 Describe gravity and its effect on matter.
 Explain the law of universal gravitation.
 Describe the difference between mass and weight.
Chapter 6: Forces and motion
 Terminal Velocity – Free Fall – Projectile Motion
 Inertia
 Momentum
SECTION 6.1 Gravity And Motion
 Explain the effect of gravity and air resistance on falling objects.
 Explain why objects in orbit are in free fall and appear to be weightless.
 Describe what is projectile motion and how it is affected by gravity.
SECTION 6.2 Newtons Laws Of Motion
 Describe Newton’s first law of motion, and explain how it relates to objects at rest and objects in
motion
 State Newton’s second law of motion, and explain the relationship between force, mass and
acceleration
 State Newton’s third law of motion, and give examples of force pairs.
GR 9 PHYSICAL SCIENCE MID YEAR STUDY GUIDE - Page 1 of 2
SECTION 6.3 Momentum
 Calculate the momentum of moving objects.
 Explain the law of conservation of momentum
Chapter 7: Forces in Fluids
 Fluid – pressure – Pascal- atmospheric pressure
 Buoyant Force - Archimedes' Principle
 Bernoulli principle – Pascal principle – lift – drag – thrust – turbulence
Section 7.1: Fluids and pressure
 Describe how fluids exert pressure.
 Analyze how atmospheric pressure varies with depth.
 Explain how depth and density affect water pressure.
 Give examples of fluids flowing from high to low pressure.
Section 7.2: Buoyant Force
 Explain the relationship between fluid pressure and buoyant force.
 Predict whether an object will float or sink in a fluid.
 Analyze the role of density in an object’s ability to float.
 Explain how the overall density of an object can be changed
Section 7.3: Fluids and Motion
 Describe the relation between pressure and fluid speed
 Analyze the lift, thrust, and wing size in the flight
 Describe the drag and explain how it affects lift
Chapter 9: Energy and Energy Resources
 Energy- Kinetic energy- Potential energy- mechanical energy
 Energy Conversions – Electric Generator
 Friction – law of conservation of energy
 Nonrenewable resources – renewable resources – fossil fuels
Section 9.1: What is Energy
 Explain the relationship between energy and work.
 Compare kinetic energy and potential energy.
 Describe the different forms of energy
Section 9.2: Energy Conversions
 Describe an energy conversion.
 Give examples of energy conversions for the different forms of energy.
 Explain how energy conversions make energy useful.
 Explain the role of machines in energy conversions
Section 9.3: Conservation of energy
 Explain how energy is conserved within a closed system.
 Explain the law of conservation of energy.
 Give examples of how thermal energy is always a result of energy conversion.
 Explain why perpetual motion is impossible.
Section 9.4: Energy Resources
 Name several energy resources.
 Explain how the sun is the source of most energy on Earth.
 Evaluate the advantages and disadvantages of using various energy resources.
HANDOUTS:
 Check your directed readings and section reviews in your binders, which you will also find on the
Edmodo folders