What is it called when there is an imbalanced electric charge on the surface of an object?
What happens to the acceleration and speed when dropping a ball from high place.
Acceleration remains the same and speed will increase.
What do joules measure?
Energy, Work.
What is an impulse?
A force that causes an object to move.
What is the normal unit of measurement for distance?
Meters
When an object has more electrons than protons what is it's charge?
Negatively Charged
What is the force of attraction that exists between two objects?
Gravity
What are the two types of mechanical energy?
Kinetic, Potential
How is momentum measured?
What is the gravitational constant?
g, 9.8m/s
What is needed for electrons to flow?
Electrical Energy
If an object is pushed what will happen the acceleration and the object itself?
What is the equation for converting gravitational potential energy to kinetic?
mgh=1/2mv^2
What types of collisions are there?
Elastic, inelastic
What is the difference between T and t?
T is the measure of a period for a spring, t is time.
What is transfer of two neutral objects when two things rub together?
Being charged by friction.
What is the equation foe Newtons Second Law?
F=ma
A force of 30N is applied to a block that makes it move 10m. It takes 5 seconds. How much power is used?
60W
Perfect Inelastic.
How many meters is 10 millimeters?
.01 meters
What is current electrcity?
Continuous flow of charges.
What units are used for Newtons Second Law?
Newtons, m/s^2 and Kg
A 1kg block has a force of 55N applied on it for 15m. How much work was done
825J
What is the momentum of a block of 15g moving at 30m/s?
.45N/s
A ball is dropped from rest from a building 30 meters tall. What is its velocity halfway down?
17.15m/s