1. Like velocity, acceleration has a direction.
Acceleration is the change in velocity divided by the time it takes for the change to occur.
Like velocity, acceleration has a direction.

2. There are three ways an object can accelerate:
Acceleration
There are three ways an object can accelerate:
Speeding up
Slowing down
Changing direction

3. Summarize
On your notes page, write down 5 times you have accelerated today.
Compare answers with another person at your table. 

4. Calculating Acceleration
This is the formula for acceleration:
acceleration = final speed – initial speed
time
In SI units, acceleration has units of meters per second squared (m/s2)

5. Inertia = tendency of an object to resist a change in its motion.
The greater an objects mass, the greater its inertia and the larger the force needed to overcome the inertia

6. Inertia
Examples:
Inertia is the resistance you feel as you change the direction you are running on a field
You can feel inertia when you catch a fast baseball that stings your hands as its momentum decreases abruptly to zero.

7. Momentum Momentum = how hard it is to stop an object in motion.
It depends on the object’s mass and velocity.
momentum = mass (in kg) x velocity (in m/s)

8. Activity
You are now going to choose a sport and create a poster illustrating how momentum and inertia are important in that sport.

9. Momentum = how hard it is to stop an object in motion.
Inertia = tendency of an object to resist a change in its motion.
The greater an objects mass, the greater its inertia and the larger the force needed to overcome the inertia
Momentum = how hard it is to stop an object in motion.
It depends on the object’s mass and velocity. Momentum = mass x velocity