Download 9th Grade Science Final Exam Review

8th Grade Physics Final Exam Review
Measurement, Formulas, and Units
Identify the units for the following:
1. ______ Distance/Displacement
A. meters/second (m/s)
2. ______ Speed/ Velocity
B. Kilogram (Kg)
3. ______ Acceleration
C. Newton (N)
4. ______ Mass
D. Joule (J)
5. ______ Weight
E. Volts (V)
6. ______ Force
F. meters/ second/ second (m/s2)
7. ______ Potential Energy
G. meters (m)
8. ______ Kinetic Energy
9. ______ Velocity (of waves)
10. ______ Voltage
**Review SI prefixes and how to convert them from one unit to another**
Speed and Velocity
What is the difference between distance and displacement?
What is distance traveled on the graph? ___________
What is the displacement of the object on this graph? _______
What is velocity? What is the formula for speed and velocity?
What is the velocity from the graph from 0-5 seconds?
What is the difference between speed and velocity? (describe using the words scalar and vector)
Acceleration
What is acceleration? What is the formula for acceleration?
What is the acceleration of the object from this graph at:
0-5 seconds?
5-7 seconds?
7-8 seconds?
P (m)
What is the Velocity of the above object at: 0 sec ________, 1 sec _______, 2 sec _________
Describe the motion of the object above referencing each graph in your explanation.
Forces
What is a force? What is the unit of force?
Find the Net Force in the 3 diagrams on the right:
What are the 4 fundamental forces?
What is the difference between a contact force and non-contact force?
List the different types of contact and noncontact forces.
What force always opposes motion? Name the different types of this force.
Draw the fundamental forces, using labeled vectors, acting on these two objects:
Law of Gravitation
What is gravity? What affects the strength of the force of gravity?
What is the acceleration due to gravity on all falling objects?
What is the formula for calculating this force of gravity? What is the common name of this force?
What is the force of gravity on an object with a 50 kg mass?
Newton’s First and Second Laws of Motion
State Newton’s First Law of Motion.
What is Inertia? What gives an object more or less inertia?
Describe the relationship between force, mass, and acceleration in Newton’s 2 nd Law.
Newton’s Third Law of Motion and Momentum
State Newton’s third law of motion.
What is momentum? What is the formula for momentum?
If the collision to the right results in the 4.0 Kg car moving,
what will be its velocity?
Energy and its Forms
What is energy?
What is work? What is the formula for work?
What are the different forms of energy? Which are kinetic forms of energy and which are potential?
What is kinetic energy? What is the formula for KE?
What is potential energy? What is the formula for PE?
Energy Conversion and Conservation
Label the ramp on the right to show areas with:
1. Greatest potential energy
2. Greatest kinetic energy
3. KE = PE
Below each graph, describe what these objects are doing:
Before
_______________________________________
After
_________________________________
Law of Conservation of Energy
State the law of conservation of energy
Sources of Energy
What are the different NON-renewal sources of energy? (Describe what type of energy these are)
What are the different RENEWABLE sources of energy? (Describe what type of energy these are)
Mechanical Waves
Label the wave diagram. Include the following:
1. Crest
2. Trough
3. Wavelength
4. Amplitude
Properties of Mechanical Waves
What is frequency? How does frequency of a wave related to energy transferred by a wave?
What is amplitude? How does the amplitude of a wave relate to the energy of a wave?
Electric and Magnetic Forces
What is an electric charge? Where does it come from?
What is the law of attraction and repulsion?
What causes electric charge to move (electric current)?
What affects the size of the electric force?
What is an electric circuit?
What is a magnet?
What is a magnetic field?
Draw and describe the magnetic field around this magnet.
Where is the magnetic field the strongest?
What is an electromagnet? What affects the strength of an electromagnet?
How does electricity make magnetism or vice versa?