What is my unit?
The unit for mass.
What is a kilogram?
The rate of change in displacement with respect to time.
What is velocity?
(mass)(acceleration)
What is the equation for Force?
Action-Reaction pair:
The table exerts a downward force on the ground; the ground exerts an ________ force on the _________.
What is the upward and table?
An ostrich can run at speeds of up to 20 m/s. It will it take an ostrich this amount of time to run 1500 m at this top speed.
What is 75 seconds?
The unit for acceleration.
What is m/s2 ?
The rate of change in velocity with respect to time.
What is acceleration?
F x d cos(the angle between them)
What is the equation for work?
Newton's 1st Law:
An object in motion will stay in motion unless acted upon an outside ________.
What is force?
This will be the weight (or Fg) of a person if his mass is 15 kg.
What is 147 N?
The unit for Force.
What is a Newton?
When any object is launched or thrown into the air and is subject only to the force of gravity (ignore air resistance).
What is projectile motion?
1/2 mv2
What is the equation for Kinetic Energy?
Impulse is equal to _______ times _______.
What is force and time?
The momentum of a 1000-kg car moving northward at 20 m/s.
What is 20,000 kg m/s north?
The unit for momentum.
What is kg m/s?
Forces that arise during physical contact between objects.
What are contact forces?
mgh
What is the equation for Gravitational Potential Energy?
Newton's 3rd Law:
For action there is an _______ and _______ reaction.
What is equal and opposite?
The kinetic energy of a 0.046-kg golf ball that is hit at 30 m/s.
What is 20.7 J?
The unit for energy.
What is a Joule?
The energy due to the motion or position of an object.
What is mechanical energy?
m1v1i + m2v2i = (m1 + m2) vf
What is the equation for perfectly inelastic collision?
In the absence of friction, total mechanical energy is __________ .
What is conserved?
The impulse experienced by a 0.2 kg baseball encountering a force of 140 N for 0.5 s.
What is 70 kg m/s?