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61 Cards in this Set
- Front
- Back
- 3rd side (hint)
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What is the difference between a vector and a scalar? Give examples. |
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How do you find the resultant force from resulant force diagrams? |
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What is a formal linking weight, mass and gravitational field strength? |
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What is a formula link work done, force and distance? What is 1 Newton metre equal to? |
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What is hookes law? |
law stating that extension in a solid is proportional to the applied force within the limit of proportionality of that solid. |
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What is a formula linking spring constant, force and extension? |
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Formula for kinetic energy? |
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What are liquid and gases classed as and why are they different? |
Classed as fluid |
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What are the 2 formula for pressure? |
2. Pressure(pa) = force(N) ÷ Area(m^2) |
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What is the formula link distance, speed and time? |
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Describe this distance time graph. How do we find speed? |
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Describe this velocity time graph. how do we find acceleration and distance? |
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What is the formula for acceleration? |
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What is the formula for uniform velocity? |
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How is freefall acceleration created and when is terminal velocity reached? What would a velocity time graph for this look like and what speed(m/s) would you travel at? |
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What is inertia, conservation of energy law and Newtons third law? |
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What is an formula link force acceleration and mass? |
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What is the formula for stopping distance? What effects it? |
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What are safety features of a car? |
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What is the formula for momentum and the conservation of momentum law? |
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What is a transverse wave and it's features? |
Top of wave crest, bottom is the trough (Movement =oscillations) |
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What is a longitudinal wave and it's features? |
Over bits are same as tansverse (movement = oscillations) |
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What is frequency in waves ( and units) and how does wavelength effect frequency? |
Long wavelength lower frequency and units for frequency = Hertz |
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What is the formula for time period in waves? |
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How can we measure speed of a wave in water? How does it work? What to things can we discover? |
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What is formula for wavespeed? |
Wavespeed = frequency X wavelength |
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Describe the electromagnetic spectrum? Listing all the wave types. |
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What is diffraction? What happens when size of gap decreases? |
When a wave travels through a gap and is bent, small the gap bigger the bend. |
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What is refraction? What affects it? |
Refraction - when a wave crosses a boundary between materials at an angle and changes direction. How much it refracts depends how much the wave speeds up or slows down, which normally depends on density of material. |
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What happens when a wave is refracted? What happens if it stays on the normal? |
The wavelength changes but frequency stays the same. If it stays on the normal wavespeed changes but is not refracted. |
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What surfaces are good absorbers, what surfaces are good emitters and what are good reflectors? |
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Which direct does a magnetic field travel in? What happens when like and unlike poles meet? What happens when you put an induced magnet in a magnetic field? What are the magnetic metals? |
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How does an electromagnetic work? How do you increase its strength? |
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What does your thuMb, First finger and seCond finger represent in Flemming left hand rule? |
Thumb = motion First finger = field seCond finger = current |
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What are the factors that affect the force in a motor? Wire is perpendicular to the magnetic field lines and when they are parallel to them? |
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What is magnetic flux density? |
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What is a formula linking force, magnetic flux density, current and length? |
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How does a simple motor work? |
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How does a loudspeaker and microphone work? |
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What is the formula for a moment? |
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What is a formula linking force mass, change in velocity and change in time? |
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What is reflection? How is angle of incidence related to line of reflection? What is the normal line? What is caused when sound wave is reflected? |
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What type of wave is a sound wave, how do we hear sound and what is our hearing range? |
Air particle vibrate and this is picked up by ear drums and brain process vibrations |
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How can we use ultrasound/echo to determine distance? |
The time for wave is to be travel to bed and back so remember to halve the distance. |
Speed formula |
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What are the different between p - waves and s - waves (earthquake waves)? What have they told us? |
By studding sesmic waves and how they are absorbed and refracted giving us understanding of earth internal structures and size of core |
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What does a convex lense look like and how does it refract light? |
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What does a convex lense ray diagram look like and what does it form? What can convex lense be used for? |
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What does a concave lense look like and how does it refract light? |
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What does a day diagram for a concave lense look like and what does it form? What can concave lense be used for? |
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Formula for magnification? |
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What are the frequencies and wavelength for violet and red in visible light? |
Red = 700nm and violet = 400nm |
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What does everything emit and what affects this? How is black body radiation different to this? |
We all emitt IR radiation and temperature affect how much we emitt .Black body absorbs all radiation none is reflected or transmitted? |
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What is the generator effect? |
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How do step up and down transformer work? What type of current is this for? |
Step up - more coils on secondary, higher voltage. Step down - more coils on primary, lower voltage. For alternating current |
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What is the formula for transformers with number of coils and voltage? What is the rule with this? |
Rule : I can be used either way(flipped) |
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What is formula for transformers using voltage and current? |
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What are the planets in our solar system? |
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What is the lifecycle of a star? |
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What elements are inside a star, what process occurs and what is given out? What starts to form when these elements are used up? |
Heavy elements like iron start to form. |
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What is a satellite? What is different between natural and artificial satellite? Why do they maintain orbit? |
A satellite is something that orbits the earth. They maintain orbit due to gravity. |
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What is redshirt? How does distance effect redshift? |
Redshift is how fast a galaxy is moving away from us. Greater distance away from earth greater redshift, and are moving away faster. Close less redshift moving away slower. |
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