Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Midterm review
Honors Physical Science midterm exam review
| Question | Answer |
|---|---|
| Reflection | wave bounces off and goes in a new direction-wavelength and frequency unchanged EX:Mirrors and echoes |
| Refraction | The wave can pass straight into and through the obstacle, changing speed and bending through the new medium EX lenses |
| Diffraction | Wave bends around or through the obstacle or through openings EX water waves going through small gap in rock |
| Absorption | Material wave travels into may absorb some energy from the wave by transforming it into another form of energy |
| Radiant energy | does not need a medium for travel (all directions) Gets organized into the electromagnetic spectrum. When it encounters a material it can reflect, refract, diffract, or be interfered, depending on the material |
| Interference | When waves collide and their amplitude gets larger or smaller |
| Transparent | Some light is allowed to pass through, minimal reflection, absorption, or scattering. Results in a clear image, EX glass |
| Translucent | Some light is allowed to pass through, Light changes directions many times as it passes through and is scattered EX sunglasses |
| Opaque | Little if any radiant energy is allowed in the material, it is either absorbed or reflected. EX Clothing |
| Reflection off rough surfaces, | Reflection in all directions, resulting in a diffuse reflection(rough surface) |
| Reflection off smooth, shiny surfaces | reflections result in clear images |
| Mechanical wave | Longitudinal NEEDS a medium for travel, Goes through all wave behaviors |
| Speed of sound | 343 |
| Speed of light | 3x10⁸ |
| Nodes | Point of no motion in a wave |
| Antinodes | Point of maximum amplitude of a wave |
| Doppler effect | similar to frame of reference |
| Light | Does not need a medium, electromagnetic, transvers |
| Sound | NEEDS a medium, Mechanical, Longitudinal wave |
| Light and Sound | Wave behaviors, doppler effect |
| EM spectrum | Lowest frequencies-highest Radio waves-Microwaves-Infrared-Visible-Ultraviolet-X-rays-Gamma rays |
| As energy increases, Frequency ____ | Increases |
| As energy/______ increases Wavelength ______ | Frequency, decreases |
| Wave | Travelling oscillation that has frequencey, wavelength adn amplitude |
| Electromagnetic wave | Do not require medium, Created as a result of vibrations between electric and magnetic spectrum EX light |
| Transverse | Perpendicular to direction of wave |
| Longitudinal | Parallel to direction of travel |
| Linear wave motions | Motion from one place to another with no repeating |
| harmonic motion | Motion that repeats in cycles |
| Crest | High point of wave |
| Trough | Low point of wave |
| Cycle | One unit of harmonic motion |
| Oscillator | physical system that has repeating cycles |
| period | time it takes to complete one cycle (s) |
| Frequencey | Number of complete cycles per second (Hz) How often a wave pulses passes by a certain point |
| Dampling | Gradual loss of amplitude due to friction |
| Amplitude | Largest amount that goes above or below average (Size of wave) |
| Wavelength | Distance from any point on a wave to the same point of the next cycle |
| Speed | How fast a wave can transmit and oscillation from one place to another |
| Constructive interference | When two waves combine to make big wave |
| Destructive interference | When two waves combine to make small wave |
| Plane wave | Wave front(crest) that is a straight line and is perpendicular (longitudinal) |
| Circle wave | Radiate outward from the center |
| (wave)Velocity formula | v=λf |
| Velocity Formula | v=displacment/time |
| Energy | capacity to do work, can make things happen. |
| Period Formula | Time/cycles |
| Frequency Formula | Cycles/time |
| Law of conservation of energy | Energy cannot be created nor destroyed, only transferred or transformed |
| Mechanical energy | Potential energy + kinetic energy |
| Work | The transfer of energy to make an object move |
| Work formula | W=Fd force times displacement |
| Power | The rate at which work is done. Increase mass=more power |
| Power Formula | Work/time |
| Potential energy | Stored energy relative to the position of the object to the earth (JOULES) FORMULA: PE=mgh (mass times gravity times height) |
| Kinetic energy | Energy of motion FORMULA: KE=1/2mv² (JOULES) |
| 7 types of force | Applied (Fₐₚₚ), Gravitational(Fg), Normal(Fn), Friction(Ff), Air Resistance (Far), Tension(Ft), Spring(Fspring), Magnetic(Fmag), Static(Fstatic) |
| REMEMBER FREE BODY DIAGRAMS | |
| Weight | The force of gravity on an object(different in different spots) |
| Mass | The amount of matter in an object(same no matter where) |
| Weight formula | W=mg (mass times gravity) |
| What is force | A push or a pull |
| Free fall | An object that is under the sole influence of gravity |
| Gravity | 9.8 m/s |
| Acceleration | Changing in speed or direction |
| Acceleration formula | Initial Velocity-Final velocity/Time=Acceleration |
| REMEMBER FRAME OF REFERENCE | |
| Position vs time graph | Slope=Velocity |
| Changing velocity implies | acceleration/change in speed and/or direction |
| Slope formula | y(1)-y(2)/x(1)-x(2)=Slope |
| Velocity is | speed with direction |
| Acceleration | The rate of change in velocity per unit of time |
| Acceleration formula | Change in velocity over the change in time |
| Speed formula | s=d/t |
| 1 in | 2.54cm |
| 1m | 39.37in |
| 1kg | 2.2lb |
| 1yd | 3ft |
| 1ft | 12in |
| 1mi | 5280ft |
| REMEMBER SCIENTIFIC NOTATION | |
| REMEMBER SIGNIFICANT FIGURES (SIG FIGS) |
Created by:
Leah237
Popular Physical Science sets