Units
What is free fall in physics?
What is when the only force acting on an object is the force of gravity?
The initial velocity of an object when it is merely dropped (as opposed to being thrown) from an elevated height.
What is 0 m/s?
One or both of these two things needs to change in order for an object to accelerate.
What is speed and direction?
On earth, it is the acceleration of an object in free fall.
What is 9.8 m/s/s ?
This is the velocity at the instant an object thrown directly upwards reaches its peak.
Equation for acceleration
What is velocity final minus velocity initial divided by time?
It is how fast an object in free fall is traveling after four seconds if dropped from rest.
*hint: use the value for (g) and mathematically apply it to how much time has passed
What is 39.2 m/s ?
It is the effect air resistance has on an object in free fall.
What is decreases the rate of acceleration?
your initial velocity is 7m/s and final velocity is 34m/s
you traveled for 54s. what is your acceleration?
0.5m/s2
true or false: acceleration due to gravity is measured at 3.456 m/s2
what is false. it is 9.8 m/s2
It is how an object traveling at a constant speed can accelerate.
What is it can change direction?
Force
newton (N)
A certain car can go from 0 to 60 km/h in 4.5 s. What is its acceleration?
What is 13.33 km/h/s?
A bullet is dropped into a river from a very high bridge. At the same time and from the same height, another bullet is fired by the gun, straight down toward the water. Neglecting air resistance, the acceleration of each bullet just before striking the water is this.
What is g (9.8m/s2) ?
True or false: An objects mass has an effect on its downward acceleration in free fall
What is FALSE