P10 - Force And Motion

Question 1

Resultant Force (__) = Mass (__) x Acceleration (__/__)

Answer 1

N…KG…M/S(squared)…

Question 2

What does Newton’s Second Law of Motion say what the Acceleration of an Object is?

Answer 2

Proportional to the Resultant Force of an Object and Inversely Proportional to the Mass of an Object.

Question 3

The Greater the Resultant Force, the Greater the ______________.

Answer 3

Acceleration.

Question 4

The Greater the Mass of an Object, the Smaller the ________________.

Answer 4

Acceleration.

Question 5

The Velocity of an Object Increases if the Resultant Force is in the ______ Direction as the Velocity.

Answer 5

Same.

Question 6

The Velocity of an Object Decreases if the Resultant Force is in the ___________ Direction as the Velocity.

Answer 6

Opposite.

Question 7

The Weight of an Object is the Force Acting on it Due to __________.

Answer 7

Gravity.

Question 8

The Mass of an Object depends on the Quality of _________ in it.

Answer 8

Matter.

Question 9

Mass 1 KG is __.__N.

Answer 9

9.8.

Question 10

Mass 5KG is ___N.

Answer 10

50.

Question 11

The Gravitational Force on a 1KG Object is the Gravitational _______ Strength at the Place where the Object is Dropped.

Answer 11

Field.

Question 12

Weight (__) = Mass (__) x Gravitational Field Strength (__/__)

Answer 12

N…KG…N/KG…

Question 13

When an Object reaches a Constant Velocity, what is it called?

Answer 13

Terminal Velocity.

Question 14

When an Object moves through the Air, the Frictional Force is called Air ____________.

Answer 14

Resistance.

Question 15

The Braking Force needed to Stop a Vehicle in a Given Distance depends on which Two Things?

Answer 15

The Speed of the Vehicle and the Mass of the Vehicle.

Question 16

The Greater the Speed, the Greater the ________________ needed to Stop the Vehicle.

Answer 16

Deceleration.

Question 17

The Greater the Mass, the Greater the Braking _______ needed for a Given Deceleration.

Answer 17

Force.

Question 18

What is the Stopping Distance in Driving?

Answer 18

The Shortest Distance a Vehicle can Safely Stop in.

Question 19

What is the Thinking Distance?

Answer 19

The Distance Travelled by the Vehicle in the Time it takes the Driver to React.

Question 20

What is the Braking Distance?

Answer 20

The Distance Travelled by the Vehicle during the Time the Braking Force Acts.

Question 21

Stopping Distance = Thinking Distance + __________ Distance.

Answer 21

Braking.

Question 22

Which Factors affect Stopping Distances?

Answer 22

Tiredness, Alcohol and Drugs.

Question 23

An Object is Elastic if it Returns to its Original ________ when the Forces Deforming it are Removed.

Answer 23

Shape.

Question 24

The Increase of the Length from the Original is called the _____________.

Answer 24

Extension.

Question 25

Extension of the Strip of Material or Spring at any Stage = __________ at the Stage - Original Length.

Answer 25

Length.

Question 26

The Extension of a Spring is Directly Proportional to the Force _________, as long as its Limit of Proportionality is not Exceeded.

Answer 26

Applied.

Question 27

What is the Equation of Hooke’s Law?

Answer 27

Force Applied (N) = Spring Constant (N/M) x Extension (M).