physics P10 Flashcards
rearraraiging resultant force equation
F=m X a or A = F/M or M=FM
what is newtons second law
acceleration of an object is
- resultant force
- mass of the object
the velocity of an object ……..if the resultant force is in the same direction
increase
the velocity of an object …… if the resultant force is in the opposite direction
decreases
Calculate the resultant force on a sprinter mass of 80kg who accselrates as 8 M/s squ
640 m/s
calcualte the accseltration of a car with 800kg acted on the resultant force of 3200N
4N
the greater the ….. of an object the greater the objects
1.) resultant force
2.) acceleration
the greater the …. of an object the smaller it’s ….given force
1.) mass
2.) acceleration
The resultant ….. acting on an object is
1.) force
2.) F=M x A
what is weight measusered in
N ( Newtons )
Mass is meausred in
Kg
What is gravitnal fileld strength meausred in
N/Kg
Calculate the mass of an object
Weight (W) = Mass ( M ) X Gravitational field strength (N/Kg)
What is terminal velocity
Maximum speed of an object
The gravitational field strength of the surface of the earth was 9..8.For the moon it was 1.6
calculate the Weight of a person mass of 50 kg
50 X 9.8 =490
The weight of an object is the …..acting on the object due to gravity
force
….velocity of an object it eventually reaches when it is falling
terminal
When a force is moving at ……the resultant force on it is zero
Terminal Velocity
The braking force of an moving object depends on
- How much alcohol you have drunk
- The speed of a vehicle
