Force
What is the formula for force?
F = ma
What is the formula for gravitational force?
Force of Gravity = Gm1m2/r^2
What is the formula for momentum?
p = mv
What is the formula and unit for kinetic energy?
KE = 1/2 m*v^2 and Joules
No because 5000 > 2000
Draw a force diagram for a book on a table
Forces: Normal Force, Gravitational Force should be depicted
Does gravitational force get larger or smaller when the distance between two objects is increased?
Smaller
What is the formula for conservation of momentum?
P_initial = P_final
What is the formula and unit for potential energy?
PE = mgh and Joules
Draw a force diagram for Mr. Nacho pushing a table across the floor
Forces: Gravity, Normal, Friction, Push Force
If Person A pushes on a wall to the left at 20N and to the right at 30N, what is the net force on the wall. Draw the force diagram as well.
If we have two objects (Object A is 25 kg and Object B is 50 kg), and they are 30 meters apart, what is the gravitational force between them? (You can leave 'G' as 'G')
(G*25*50)/30^2
If two ice skaters (ice skater A is 20 kg and ice skater B is 10 kg) push off of each other and ice skater A goes left at 10 m/s, what direction and velocity does ice skater B go at?
20 m/s to the right
What is the formula for total energy based on what we have learned?
KE + PE = Total Energy
Why do you not feel the gravitational force between other students in the class?
Masses are small so force is weak
If a gorilla is 2000kg, and it is accelerating at 5 m/s^2, what is the force generated by the gorilla.
What is the unit for gravitational force?
Newton
Ball A is 10 kg travels to the right at 5 m/s and Ball B is 20 kg travelling left at 2 m/s and they collide. Ball A bounces back at 10 m/s, what is the final velocity of Ball B
90/20 or -90/20 m/s
A 20 kg ball is at the top of a 10 m ramp, what is the KE right before it touches the ground?
What is Mr. Ward's favorite physics topic of these topics?
Kinetic and potential energy
What is the force if there is a constant velocity?
If I double the mass of one object and triple the distance, what happens to gravitational force?
Multiplied by 2/9
A 12,000 kg railroad car is traveling at 2 m/s when it strikes another 10,000 kg railroad car that is at rest. If the cars lock together, what is the final speed of the two railroad cars?
1.1 m/s
A 100 kg driver is at the top of a diving board that is 30 m in the air. What is the velocity of the diver right before the diver hits the water?
square root of 588 m/s
What is Mr. Nacho's favorite topic in Physics?
Momentum