Statistics for KS4 Topic 1 Keywords (ST)

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General Stats

This quiz has been taken 57 times
The average score is 16 of 34

Answer Stats

Definition	Keyword	% Correct
The rate of change of velocity	Acceleration	90%
The rate of decrease of velocity.	Deceleration	84%
Describes the total distance travelled in a given time. A scalar quantity that is measured in metres, (m)	Distance	84%
A push or a pull, measured in Newtons, (N)	Force	84%
The sum of the forces on an object	Resultant force	81%
Force of gravity acting on a mass ( N )	Weight	81%
A quantity that has a size (magnitude) and a direction (eg. Velocity, Weight, Displacement, ...)	Vector	74%
When the resultant force on an object is zero (ΣF=0)	Balanced Force	71%
A quantity that has size (magnitude) only (eg. Speed, Mass, Distance...)	Scalar	71%
Decribes the distance and direction from the starting position after a given time. A vector quantity that is measured in metres, (m)	Displacement	68%
Amount of material of an object, measured in kilograms (kg)	Mass	68%
The rate of change of distance. A scalar quantity.	Speed	65%
The total distance moved by a moving vehicle before it stops. SD = TD + BD.	Stopping distance	65%
The rate of change of displacement. A vector quantity.	Velocity	65%
The distance moved by a moving vehicle during the reaction time of the driver	Thinking distance	58%
The distance travelled by a moving vehicle after the brakes are put on, until it comes to a stop.	Braking distance	55%
The constant speed reached by a falling object when the forces on it are balanced	Terminal velocity	55%
The slope of a line on a graph (can be a curved or straight line). m=∆y/∆x.	Gradient	48%
Describes materials that go back to their original shape and size after you have stretched or compressed them	Elastic	45%
An upward force acting on an object immersed in a fluid. Equal in magnitude to the weight of the fluid that the object displaces. Sometimes called buoyancy.	Upthrust	45%
The force that resists motion. Acts in the opposite direction to motion	Friction	39%
When the resultant force on an object is non-zero (ΣF≠0)	Unbalanced Force	35%
The time between when a driver sees a problem and applies the brakes	Reaction Time	32%
The state of an object when all of the forces on it are balanced	Equilibrium	26%
The force of gravity that acts on a mass of one kilogram (N/kg)	Gravitational field strength	26%
The increase in length from the original length when something is stretched. Extension = Final length - Initial length.	Extension	16%
A material that changes shape when a force is applied and does not return to its original shape when the force is removed	Plastic	16%
A relationship between two variables where doubling one variable will double the other variable. Graphically represented by a straight line graph that passes through the origin.	Proportional	16%
A verb that means "acted on" (used when describing forces)	Exerted	13%
Movement under the force of weight alone	Free fall	13%
The point through which the weight of an object acts. If the object is supported beneath the centre of gravity, it will balance.	Centre of gravity	10%
Force between two charged objects	Electrostatic force	10%
A contact force that acts perpendicular to a surface to balance the weight of an object when it is in contact with the surface.	Normal reaction	10%
A number that desribes of how easily an object can move through a fluid (a liquid or a gas)	Drag coefficient	3%