Yr 11 - Physics

Question 1

Define speed

Answer 1

The rate of motion of an object.

Question 2

Speed equation

Answer 2

V = d/t - m/s⁻¹

Question 3

Define acceleration

Answer 3

The rate of change of velocity per unit of time

Question 4

Acceleration equation

Answer 4

a = ∆V/t - m/s⁻²

Question 5

Define force

Answer 5

Amount of energy exerted on an object

Question 6

Force equation for side to side

Answer 6

F = m*a - Newton(N)

Question 7

Force equation for up and down

Answer 7

F = m*g - Newton(N)

Question 8

Define mass and gravity

Answer 8

mass is the amount of matter an object has and weight is the gravity * mass

Question 9

Define pressure

Answer 9

The force acting on a unit area of a surface

Question 10

Pressure equation

Answer 10

P = F/a(area) - Pa (pascal)

Question 11

Define gravitational potential

Answer 11

Energy an object possesses because of its position in a gravitational field

Question 12

Gravitational potential energy equation

Answer 12

EpG = mass * gravity * height - joules(J)

Question 13

Define kinetic energy

Answer 13

Energy an object possesses because of its motion

Question 14

Kinetic energy equation

Answer 14

EpK = 0.5 * mass * velocity² - Joules(J)

Question 15

Mass equation

Answer 15

m = 2*Ek/v² - Joules(J)

Question 16

Velocity equation

Answer 16

V = √2*Ek/m (square root whole thing) - joules(J)

Question 17

Define work

Answer 17

Work is moving an object with force over a distance

Question 18

Work equation

Answer 18

work = energy (gravitational & kinetic)

Question 19

6 types of force

Answer 19

Gravity
Support
Thrust 
Drag
Lift
Tension