Forces - Key Terms Questions and Answers Autumn 2022
Accelerating Correct Answer: the rate of change of velocity, measured in metres per second
squared (m/s2 )
Acceleration Correct Answer: the rate of change of velocity, measured in metres per second
squared (m/s2 )
Altitude Correct Answer: the vertical height of an object above sea level
Atmoshpere Correct Answer: the gaseous envelope surrounding the Earth or another body in
space
Braking distance Correct Answer: the distance a vehicle travels under braking force (from the
point when the brakes are first applied to the point when the vehicle comes to a complete stop)
Collision Correct Answer: an event in which two or more bodies, or particles, come together
with a resulting change of direction and energy
Compression Correct Answer: the act of squeezing / pressing (an elastic object)
Contact force Correct Answer: a force that occurs between two objects that are in contact
(touching), e.g. friction and tension
Deceleration Correct Answer: describes negative acceleration, i.e. when an object is slowing
down
Dense Correct Answer: having a high density (mass per volume)
Displace Correct Answer: to cause a quantity of liquid, usually water, to move from its usual
place
Displacement Correct Answer: a vector quantity that describes how far and in what direction
an object has travelled from its origin in a straight line
Distance Correct Answer: a scalar quantity that provides a measure of how far an object has
moved (without taking into account direction)
Elastically deformed Correct Answer: describes an object that can return to its original shape
when the forces causing it to change shape are removed
Accelerating Correct Answer: the rate of change of velocity, measured in metres per second
squared (m/s2 )
Acceleration Correct Answer: the rate of change of velocity, measured in metres per second
squared (m/s2 )
Altitude Correct Answer: the vertical height of an object above sea level
Atmoshpere Correct Answer: the gaseous envelope surrounding the Earth or another body in
space
Braking distance Correct Answer: the distance a vehicle travels under braking force (from the
point when the brakes are first applied to the point when the vehicle comes to a complete stop)
Collision Correct Answer: an event in which two or more bodies, or particles, come together
with a resulting change of direction and energy
Compression Correct Answer: the act of squeezing / pressing (an elastic object)
Contact force Correct Answer: a force that occurs between two objects that are in contact
(touching), e.g. friction and tension
Deceleration Correct Answer: describes negative acceleration, i.e. when an object is slowing
down
Dense Correct Answer: having a high density (mass per volume)
Displace Correct Answer: to cause a quantity of liquid, usually water, to move from its usual
place
Displacement Correct Answer: a vector quantity that describes how far and in what direction
an object has travelled from its origin in a straight line
Distance Correct Answer: a scalar quantity that provides a measure of how far an object has
moved (without taking into account direction)
Elastically deformed Correct Answer: describes an object that can return to its original shape
when the forces causing it to change shape are removed
