Zap-A-Thon
What is it called when there is an imbalanced electric charge on the surface of an object?
Static electrcity.
What happens to the acceleration and speed when dropping a ball from high place.
Acceleration remains the same and speed will increase.
What two things can be measured in joules?
Energy and Work.
What is an impulse?
A force that causes an object to accelerate.
How many meters is 10 millimeters?
0.01 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?
Gravitational force
What are the two types of mechanical energy?
Kinetic, Potential
How is momentum measured?
mv=N/s, or kg*m/s
True of False: If I drive around a curve at a constant speed, I am accelerating.
True
What does a battery provide in a circuit (another name for voltage)?
Electrical Potential
Which of Newton's Laws allowed the Balloon Car to move?
3rd Law - Action/Reaction
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 the formula for Ohm's Law?
V = I * R
What is the equation for 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.
This is the part of a longitudinal wave with lowest pressure.
Rarefaction
If a 120 volt power supply is applied to a simple series circuit with two 120 ohm bulbs, how much current exists in the circuit?
0.5 amps
A ball is dropped from rest from a building 30 meters tall. What is its velocity halfway down?
17.3 m/s
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
If light from the Sun takes 8.3 minutes to reach Earth, how far away is the Sun?
1.50x1011 meters, or 1.50x108 km