160 likes | 610 Views
Acceleration . Acceleration is the change in velocity divided by the time it takes for the change to occur. Like velocity, acceleration has a direction . . Acceleration. There are three ways an object can accelerate: Speeding up Slowing down Changing direction. Summarize .
E N D
Acceleration Acceleration is the change in velocity divided by the time it takes for the change to occur. Like velocity, acceleration has a direction.
Acceleration There are three ways an object can accelerate: Speeding up Slowing down Changing direction
Summarize On your notes page, write down 5 times you have accelerated today. Compare answers with another person at your table.
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)
Inertia 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
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.
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)
Activity You are now going to choose a sport and create a poster illustrating how momentum and inertia are important in that sport.
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