"An object at rest will stay at rest until a force acts upon it" is which of Newton's laws?
What is Newton's first law
100
As you travel downwards through the water, what happens to the pressure?
What is will increase as you descend further downwards
100
A boy pulls a sled 22m. The force that he applies is in the direction of the motion is 20N. How much work does he do?
What is 440 J or Joules
200
A comparison of a machine's work output with the work input.
What is Mechanical efficiency
200
What is the equation for power?
What is P=W/T
200
The force that is acting on you right now that keeps you on earth is called what force?
What is gravity
200
If the buoyant force is equal to the weight of an object it will do what?
What is float
200
Describe the relationship between a moving object's mass and it's kinetic energy?
What is The greater the mass of an object moving at a given speed, the greater the kinetic energy.
300
The rate at which velocity changes.
What is acceleration
300
When you stretch a rubber band, what type of potential energy are we talking about?
What is Elastic potential energy
300
What is the equation for figuring out Average acceleration?
What is a= V(final)- V(initial)/Time
300
What are two ways an object's density is affected?
What is by its mass and volume
300
At 2.5 seconds, the helicopter has a kinetic energy of 20 J. What is its mechanical energy?
What is 40 J
400
The number of times the machine multiplies the input force.
What is Mechanical advantage
400
What is the equation for mechanical energy
What is mechanical energy= KE + PE
400
What is the equation for figuring out Newton's second law?
What is Force= mass x acceleration
400
What is the equation to figure out pressure?
What is pressure= force/area
400
A Cat has a mass of 4 kg and is 1.5 m above the ground. What is the gravitational potential energy?
What is 58.8 J
500
The energy possessed by an object due to its motion and position.
What is Mechanical energy
500
When we talk about a roller coaster, the first drop has what type of energy?
What is kinetic energy
500
"For every action on an object their will be an opposite reaction to counter the action" is which of Newton's laws?
What is Newton's third law
500
If the buoyant force on an object is greater than the object's weight what will happen to the object?
What is it will buoye
500
A compact fluorescent light bulb, called CFL, is advertised as being just as bright as an incandescent 100 W light bulb but using less energy. The CFL uses only 156 J of energy in 6 s. What is the power of this CFL bulb?