Section 1
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Newton
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Cards (72)
Section 1
(50 cards)
Newton
A measurement of force
Mass
The total amount of matter in something.
Unbalanced Force
A force that is not equal in size and opposite in direction.
F = m x a
Formula for Force
Displacement vs Time Graph
Shows the distance an object travels in a certain amount of time. slope is velocity
Conservation of energy principle
The conservation of energy principle is that 'energy can be transferred usefully, stored or dissipated, nut can never be destroyed or created'
Resistance
Anything that slows down the flow of the current. Measured in ohms (Picture)
Newton's Third Law of Motion (Definition)
for every action there is an equal and opposite reaction; there is a reaction force that is equal in size but opposite in direction.
Potential difference (Voltage)
=Current X Resistance
Friction
The force between objects that resists motion - always slows down motion
Wave speed formula
Wave speed (v)=Frequency(Hz)x Wave length (ƛ)
Potential difference (Voltage
Is the driving force that pushes the charge around. Measured in volts (V)
Wavelength
The distance between the same point on two adjacent waves (between the trough of one wave and the trough of the wave next to it, applies the same way with the crest,)
Example of no work being performed
A monkey holds a 5 kg pineapple over his head for 5 minutes.
Newton's Third Law of Motion (Example)
as the thrust of a rocket pushes down on Earth's surface, the rocket launches upward into the atmosphere
Period
From the frequency, you can find a period of a wave using the formula 1÷frequency
Electromagnets
Electromagnets are magnets that turn or off when an electric current is passed through it. They are used to lift things up or down and can be used with other circuit as a switch
Newton's Second Law of Motion (Example)
the force applied to a roller coaster car in addition to the mass of the car determines the acceleration of the car; more force = more acceleration
Work
=Fxdistance*cosine of the angle.
Waves
Transfer energy in the direction they are traveling
Newton's First Law of Motion (Definition)
an object at rest will stay at rest unless acted upon by an outside unbalanced force; an object in motion will stay in motion unless acted upon by an outside unbalanced force.
Gravity
A force that pulls objects together
kinetic energy
1/2 mvv the energy of motion
Example of work
A monkey carries a 5 kg pineapple 10 meters in 5 minutes.
Inertia
the tendency of a body to maintain is state of rest or uniform motion unless acted upon by an external force
Different types of energy
Some different types of energy are: Thermal energy Kinetic energy Gravitational potential energy Elastic potential energy Chemical energy Magnetic energy Electrostatic energy Nuclear energy
Speed
the distance traveled by an object in a given amount of time.
Work
force exerted on an object that causes the object to move in same direction that the force was applied
Acceleration
The rate of change in velocity. Can be a change in direction, positive (speeding up) or negative (slowing down).
Amplitude
The maximum displacement of a point on the wave from this undisturbed position
Magnitude
The strength or size of an object or force.
Electromagnetic waves
Are transverse waves that transfer energy from a source to an absorber. They travel through air or vacuum at the same speed. there are a variety that increase in frequency overtime.
Velocity
speed of an object and its direction of motion; changes when speed, direction or both changes
Force
A push or pull on an object that can cause a change in movement
Balanced Force
Two forces in opposite directions. Net force is zero and the motion of the object does not change.
Newton's First Law of Motion (Example)
when a car suddenly stops and your head continues to move foward even though your body is stopped by the seat belt
Electric Current (Amps)
The flow of an electric charge. The unit of this is ampere (A)
Energy
The capacity for doing work.
power
Work/time determines the amount of effort
Sound waves
These are caused by vibrating objects. These are passed through the surrounding area as a series of compressions an rarefactions. These travel faster in more solid states of matter as it is more easier to vibrate the particles to make sound if there close together, rather than far apart. This is why in a vacuum, where there are no particle's there is no sound
Example of speed
Nemo swims 58 m/s
Longitudinal waves
Waves were the oscillation (vibrations) are parallel to the direction of energy transfer. Some of these waves include: Sound wave in air, ultrasound Shock waves, some seismic waves
Potential Energy
Energy stored in an object by the virtue of its position.
Example of velocity
Nemo swims 37 m/s South to Wallaby Way in Australia.
Newton's Second Law of Motion (Definition)
the greater the force applied to an object, the greater the acceleration; the smaller the mass of an object, the greater its acceleration when force is applied; only an unbalanced force can cause objects to accelerate
Motion
A change in the position of an object over time.
Net Force
The total of all the forces acting on an object
Transverse waves
Waves were in which the oscillation (vibrations) are perpendicular (90 degrees) to the direction of energy transfer. Some of these waves include: All electromagnetic wave (light) Ripples and waves in water A wave on a string
Kinetic Energy
The energy an object possess due to its motion.
Frequency
Is the number of complete waves passing a certain point per second. Frequency is measured in Hertz (Hz), where 1 wave is 1 Hertz
Section 2
(22 cards)