Variables&Symbols
What variable uses the symbol p?
Momentum
If an object is not moving, what is its momentum?
0
Are planets moving faster or slower when close to the sun?
Faster
What symbol is used to represent Impulse?
Capital J
Car A is driving down the road at 50mph. Car B is driving down the road at 45mph. If both cars have the same momentum, which one has a bigger mass?
Car B
A ball is attached to a string and whirled in a horizontal circle at a constant speed. If the string suddenly breaks, describe the direction of the ball?
What does capital G represent?
Two cars bounce off each other from rest. What type of collision is this?
Elastic
Which direction is the centripetal force and acceleration in circular motion?
Towards the center of the circle.
What symbol is used to represent PERIOD of time for one complete oscillation?
Capital T
What do you want to do to the time of an impact if you want to decrease the force in a collision? Increase time or decrease time?
Increase
Which of Kepler's laws states: A planet moves around the Sun in an elliptical orbit, with the Sun located at one of the two foci of the ellipse.
Kepler's 1st law
What is the greek letter used to represent torque?
tau
A 50-kg box is sliding across the floor at 2 m/s. A 5-kg ball rolling across the floor at 10 m/s.
Which object is harder to stop (more momentum)?
The Box
50kg * 2m/s = 100kgm/s
Daily Double
If the moon were to double its distance from Earth, by what factor would their gravitational force of attraction change to?