Physics flashcards pt2

Question 1

Braking distance

Answer 1

Distance travelled by a vehicle during the time it takes for the brakes to act

Question 2

Conservation of momentum

Answer 2

In a closed system total momentum before an event is the same after an event. It is conserved within any collision, No external forces act on the object that collide or explode.

Question 3

Directly proportional

Answer 3

A graph will show if the line of best fit is straight through the origin

Question 4

Elastic

Answer 4

If something is managing to maintain it’s shape go back to it’s original shape if a force has been applied

Question 5

Extension

Answer 5

Increase length of a spring

Question 6

Inertia

Answer 6

The tendency of an object to stay at rest or continue uniform motion

Question 7

Limit of proportionality

Answer 7

Limit of the extension of a spring

Question 8

Mass

Answer 8

Quantity of matter in an object

Question 9

Newtons second law

Answer 9

The acceleration of an object is proportional to the resultant force of an object, inversely proportional to the mass of an object

Question 10

Stopping distance

Answer 10

The distance travelled by the vehicle in the time it takes for the vehicle to brake

Question 11

Terminal velocity

Answer 11

Velocity reached of an object when the drag force on it is equal and opposite to the force making it move

Question 12

Thinking distance

Answer 12

Distance travelled by a vehicle in the time it takes the driver to react

Question 13

Weight

Answer 13

The force of gravity on an object

Question 14

Acceleration

Answer 14

Change of velocity per second

Question 15

Deacceleration

Answer 15

Change of velocity per second when an object slows down

Question 16

Gradient

Answer 16

Change of quantity plotted on the y-axis divided by the change of the quantity plotted on the x-axis

Question 17

Tangent

Answer 17

A straight line drawn to touch point on a curve at the point

Question 18

Velocity

Answer 18

Speed in a given direction