P10 - Force And Motion Flashcards
Resultant Force (__) = Mass (__) x Acceleration (__/__)
N…KG…M/S(squared)…
What does Newton’s Second Law of Motion say what the Acceleration of an Object is?
Proportional to the Resultant Force of an Object and Inversely Proportional to the Mass of an Object.
The Greater the Resultant Force, the Greater the ______________.
Acceleration.
The Greater the Mass of an Object, the Smaller the ________________.
Acceleration.
The Velocity of an Object Increases if the Resultant Force is in the ______ Direction as the Velocity.
Same.
The Velocity of an Object Decreases if the Resultant Force is in the ___________ Direction as the Velocity.
Opposite.
The Weight of an Object is the Force Acting on it Due to __________.
Gravity.
The Mass of an Object depends on the Quality of _________ in it.
Matter.
Mass 1 KG is __.__N.
9.8.
Mass 5KG is ___N.
50.
The Gravitational Force on a 1KG Object is the Gravitational _______ Strength at the Place where the Object is Dropped.
Field.
Weight (__) = Mass (__) x Gravitational Field Strength (__/__)
N…KG…N/KG…
When an Object reaches a Constant Velocity, what is it called?
Terminal Velocity.
When an Object moves through the Air, the Frictional Force is called Air ____________.
Resistance.
The Braking Force needed to Stop a Vehicle in a Given Distance depends on which Two Things?
The Speed of the Vehicle and the Mass of the Vehicle.
The Greater the Speed, the Greater the ________________ needed to Stop the Vehicle.
Deceleration.
The Greater the Mass, the Greater the Braking _______ needed for a Given Deceleration.
Force.
What is the Stopping Distance in Driving?
The Shortest Distance a Vehicle can Safely Stop in.
What is the Thinking Distance?
The Distance Travelled by the Vehicle in the Time it takes the Driver to React.
What is the Braking Distance?
The Distance Travelled by the Vehicle during the Time the Braking Force Acts.
Stopping Distance = Thinking Distance + __________ Distance.
Braking.
Which Factors affect Stopping Distances?
Tiredness, Alcohol and Drugs.
An Object is Elastic if it Returns to its Original ________ when the Forces Deforming it are Removed.
Shape.
The Increase of the Length from the Original is called the _____________.
Extension.
Extension of the Strip of Material or Spring at any Stage = __________ at the Stage - Original Length.
Length.
The Extension of a Spring is Directly Proportional to the Force _________, as long as its Limit of Proportionality is not Exceeded.
Applied.
What is the Equation of Hooke’s Law?
Force Applied (N) = Spring Constant (N/M) x Extension (M).
