What happens to a moving car when there is a resultant force?
It accelerates
It decelerates
It stays the same
The acceleration of a car depends on..
speed it was traveling and road surface
air resistance applied and mass of car
size of resultant force and mass of car
What can an object best accelerate?
when the force is greater but mass is smaller
when the mass is greater and the force is greater
when the force is smaller but the mass is greater
what is newtons second law of motion?
force (N) = Mass (kg) + acceleration (m/s squared)
force (N)= Mass (kg) x acceleration (m/s squared)
force (N)= Mass (kg) - acceleration (m/s squared)
when investigation force and acceleration what must you keep the same?
Force
Mass
Acceleration
How do you work out Acceleration (m/s squared) ?
change in velocity (m/s) divde by time (s)
change in velocity (m/s) x time (s)
change in velocity (m/s) - time (s)
cyclist accelerates from 0 to 10 m/s in 5 seconds. What is her acceleration? (acceleration= change in velocity divided by time)
5m/s sqaured
4 m
2 m/s squared
Mass is a scalar property
Weight is another word for mass
on the moon the gravitational field strength is 1.6 n/kg. What will james (who weighs 70 kg on earth) weight be on the moon? (Weight= mass x gravitation field strength)
112n
112kg
64 n
As the speed of an object increases the drag on it decreases
in a vacuum all objects fall at the same rate mass does not matter
depending on the mass of the falling objects depends the rate of acceleration
