Group 1
What is stored energy called?
Potential Energy
Energy in Motion
Kinetic Energy
two rocks of the same size are thrown at an alligator, how do you know which will hit the alligator with more force?
the one with the most velocity
What are the two energy transformations of a burning candle? (2)
Chemical->Thermal
On a roller coaster when does it reach maximum Kinetic energy?
at the lowest point
If a baseball has 2N pushing down (gravity),2N pushing up (Earth), and 1 N of friction pushing to the right, how much force must the wind push the ball to move it to the left?
Over 1 N.
What two factors does kinetic energy depend on?
mass and velocity
What is the formula for force?
Force = mass x acceleration
What is the energy transformation in the Human body? (2)
Chemical->Heat
What word means the ability to do work?
Energy
What two factors affect how strong the gravitational pull is?
size and distance
What happens to kinetic energy when the speed of an object increases?
It goes up
What are the three energy transformations in a flashlight? (2)
Chemical->Electrical->Heat and/or Light
Joules
If you push on the wall what does the wall do?
push back
Objects with different masses were sent down a slide to see which would have the greatest energy. What part of the experiment is 'Objects with different masses'?
Independent variable
If a 3 Kg ball is rolling at 10 m/s what is its force?
30 N
What is the energy transformation in a campfire? (2)
Chemical->Heat or Light
What two factors does gravitational potential energy rely on?
mass and height
If a football player is not large, how do they create the same amount of force as the larger players?
they go faster
when does a fish demonstrate kinetic energy?
When it swims
There are two cars: car A weighs 700 Kg and car B weighs 800 Kg. If car A travels at 70 m/s and car B travels at 65 m/s. Which car is traveling faster?
Car B
What is the energy transformation in a windmill? (2)
Kinetic->Electrical and/or Mechanical
What type of energy is released when bonds between atoms are created or destroyed?
Chemical energy