Physics Motion Flashcards
Distance
To find distance, speed is beside time, so distance is speed multiplied by time.
Speed
To find the speed, distance is over time in the triangle, so speed is distance divided by time.
Meters
The Meter is the basic unit of length in the SI system of units
Speed
Speed is the distance traveled per unit of time
Magnets
Pieces of metal that attract other substances.
Magnet Material
Materials magnets attract. For example, iron, steel, cobalt and nickel, as well as other magnets.
Alloy
A mixture of two metals. Steel contains iron and cobalt
Distance-time graph
Graph drawn using time on x axis and distance on y axis. The slope gives the speed
Current electricity
The steady flow of charge though wires and circuits.
Static electricity
When two objects come into contact, electrons can transfer between them. When this happens, both objects become charged with static electricity.
Charged particles
Particles that have lost or gained electrons.
Conductors
Particles that have lost or gained electrons.
Insulator
A substance that does not allow energy, such as heat or electricity, to pass through it easily.
Negative
Electrons have a negative charge. If an object gains electrons, it becomes negatively charged.
Positive
An object that has lost electrons takes on a positive charge.
Components
Objects in an electric circuit. The conversion of electrical energy into other forms takes place when that energy passes through these objects.
Circuit diagram
An electronic circuit drawn using symbols
Current
The steady flow of charge though wires and circuits.
Potential difference
When there is a point of high electrical energy and a point of low electrical energy in a circuit, there is a difference in electrical potential energy between these points. It is called potential difference.
Voltage
Another word for potential difference. Measured in Volts (V) using a voltmeter.
Resistance
A measure of how difficult it is for an electric current to pass through a substance.Unit is the Ohm. Measured using an ohmmeter.
Scalar
A measurement that has size (magnitude) only. They do not have direction associated with them. E.g. distance, speed, time.
Vector
A quantity that has magnitude and direction associated with them. e.g. displacement, velocity.
Displacement
A quantity that has magnitude and direction associated with them. e.g. displacement, velocity.
Velocity
is the speed of an object in a given direction. E.g. 10 m/s south.
