Question

write the formula and SI unit of force, speed, velocity, acceleration, work, energy, power, weight, kinetic energy, energy, distance, displacement and pressure.

Answer 1

Force= mass×acceleration (newton)
Speed=Distance/Time(metre/second)
velocity=Displacement/Time (metre/second)
acceleration=Velocity/Time(metre/second²)
work=Force×displacement(Joule)
Energy=mass×speed of light²(Joule)
Power=Work/time(Watt)
Weight=mass×accelaration due to gravity (kgm/s²)
Kinetic energy= 1/2 mass×velocity²(Joule)
Distance=Speed×Time(metre)
Displacement=Velocity×time(metre)
Pressure=Force/Area(Pascal)

SI units are in brackets.........

Answer 2

F = mass *  acceleration

si = newton (N)

speed = total distance / total time

si = meter/sec. (m/s)

velocity = displacement / time

si unit = meter / sec. (m/s)

acceleration = final velocity - initial velocity / time

si unit = meter / second sq. (m/s ^2)

work = force * displacement

si unit = joule (J)

energy = there's no formula for grade 9 students for energy!

si unit = joule (J)

power is equivalent to a unit of work divided by a unit of time

si unit = joule / sec. (J/s) or watt

weight = force = ma

si unit = newton (N)

K.E = 1/2 m v sq.

si unit = joule(J)

distance = time * speed

si unit = meter (m)

displacement = velocity * time

si unit = meter (m)

pressure = thrust / area

si unit = newton / meter sq. (N/m ^2)