General Physics

Question 1

Speed

Answer 1

Total distance / total time

Question 2

Acceleration

Answer 2

Change in speed/time taken

Question 3

Weight

Answer 3

Mass x gravitational field strength (9.8)

Question 4

Force

Answer 4

Mass x acceleration

Question 5

Momentum

Answer 5

Mass x velocity

Question 6

Impulse

Answer 6

F x t
Impulse also equals final momentum - initial (change in momentum)

Question 7

Force

Answer 7

Spring constant x extension
(Hooke’s law)

Question 8

Moment

Answer 8

Force x perpendicular distance to the pivot

Question 9

Density

Answer 9

Mass / volume

Question 10

Resultant force

Answer 10

Gives an acceleration to the object

Question 11

Scalar

Answer 11

Distance, speed, time

Question 12

Vectors

Answer 12

Velocity, acceleration

Question 13

Pressure

Answer 13

Force (N)/area(m2)

Question 14

Change in pressure

Answer 14

Density of a liquid x gravitational x change in height

Question 15

Kinetic energy

Answer 15

Movement

Question 16

Thermal energy

Answer 16

Vibrations of particles in an object
(The hotter the object, the faster the particles move)

Question 17

Elastic energy

Answer 17

Energy stored when the object is stretched

Question 18

Magnetic energy

Answer 18

Energy stored ( pushed together or further apart )

Question 19

Efficiency

Answer 19

Useful energy transformed/ total energy supplied

Question 20

Work done (energy transferred)

Answer 20

F x d (distance in direction of force)

Question 21

Power (rate of energy transferred) WATTS

Answer 21

Work done/time