Newtons Laws Flashcards
what is the angular speed equation
angular distance/time
what is the angular velocity equation
angular displacement/time
what is a revolution
a complete 360 degree turn
define angular acceleration
the rate at which the angular velocity changes over time
what are four sporting examples which use angular motion
- golf swing
- bowling in cricket
- riding a bike
- freestyle swimming
what are three sporting examples of general motion
- swimming
- running
- cycling
what are newtons three laws of motion
- inertia
- law of force and acceleration
- newtons third law
what is the rotational inertia
the resistance to a change in a rotation. The more rotational inertia an object has the more difficult is to get to spin
what is the equation of inertia
I(inertia) - M(mass) x r^2(radius of rotation)
how can you reduce inertia
by decreasing either the mass or radius of an object
what is the equation for newtons second law of motion
F(force) = M(mass) x A(acceleration)
what is the equation for impulse
Impulse = F(force) x T(time)
what is a sporting example of impulse
A tennis player will change the tension of their strings as a means to increase or decrease the amount of time the ball spends on the racquet.
The more time on the racquet, the greater the impulse.
The less time on the racquet, the lower impulse.
