BTEC engineering L3 - unit `1 - C1

C1 - unfinished

what does “s” stand for in suvat

displacement (m)

what does “u” stand for in suvat

initial velocity (m/s)

What does “v” mean in suvat?

Final velocity (m/s)

what does “a” stand for in suvat

constant acceleration (m/s²)

what does “t” stand for in suvat

time taken (s)

what is the equation for acceleration

final velocity - initial velocity/time

what is newtons second law

the acceleration of an object is directly proportional to the net force acting upon it and inversely proportional to its mass

f = ma

what is the formula for work

force (n) * distance (m)

what are the units for work

joules

what is the equation for power

power = energy transferred/ time taken

what is power measured in

watts - 1 watt is 1 joule transferred in a second

what is gravitational potential energy

the energy stored in an object due to its vertical position or height within a gravitational field, typically near the Earth's surface (9.81)

what is kinetic energy

the energy an object possesses due to its motion

what is gravitational potential energy and kinetic energy measured in

joules

what is the conservation of energy

the rule that says energy is not created or destroyed, it is transferred, stored or dissipated

true or false, energy is lost when work is done

false✖

what is momentum

the quantity of motion of a moving body, measured as a product of its mass and velocity.

what is the equation for momentum

p = mv (momentum = mass * velocity

where does the conservation of momentum derive from

newtons third law - for every action, there is an equal and opposite reaction.

if two objects collide but don’t stick together, what’s the formula?

m₁u₁ + m₂u₂ = m₁v₁ + m₂u₂

if two objects collide but stick together, what’s the formula?

m₁u₁ + m₂u₂ = (m₁+ m₂)v

if two objects collide but explode, what’s the formula?

m₁u₁ + m₂v₂ = 0.0kgms^-1

what is ts

sankey diagram, used to visualize energy