Radioactivity
If undergoing beta decay a molecule of Radium 224 will become
Actinium 224
State if the energy is Kinetic or Potential
1. Thermal
2. Nuclear
3. Magnetic
1. Kinetic
2. Potential
3. Potential
What is the height of an 2kg object that has 1000J of potential energy?
50m
What is the equation for cellular respiration
C6H12O6 + O2 --> CO2 + H20 + ATP
Before the Euro what was the currency of italy
Lira
When a large nucleus splits into two smaller nuclei that is 1. ________ when two small nuclei become one larger nucleus that is 2. _____________
1. Fission 2. Fusion
An object is lifted and then held at 2m above the ground. What type of energy transformation has taken place?
Mechanical to Gravitational
What is the velocity of an 100kg object that has 4000J of kinetic energy?
8.9 m/s
What is the name of the molecule organisms use for fuel (made in the mitochondria)
ATP adenosine triphosphate
What is the only animal with 4 knees
Elephant
Write out the equation for the alpha decay of Cesium 134
134/55 Ce --> 4/2He + 130/53 I
Energy can neither be created nor destroyed just transformed and transferred. What is this statement called?
Law of conservation of energy
If a 10kg object starts out on a 30m hill. What will it's maximum velocity be?
24.5 m/s
What organelle is responsible for trapping carbon and making sugars?
Chloroplast
Which NHL team won the Stanley cup last year 2018?
Washington Capitals
When gamma radiation is released what will it's interaction with a magnet be?
No interaction as it is uncharged
Of the following examples state if they are open, closed or isolated systems
1. A Cat
2. A fridge
3. The ocean
1. open
2. isolated
3. open
A system has a total mechanical energy of 20 000J. What is the height of a hill if the velocity of the 100kg cart at that point is 12m/s
12.8 m
Describe the transformation of energy in the process of photosynthesis
Radiant energy --> Chemical
What is the name of the parrot from Aladin?
Iago
A 10g sample of radioactive Francium has a half life of 6 min. How much will remain after 24 minutes?
0.625g
Describe the energy transformation in the following examples
1. Battery powered flashlight
2. Solar panel
3. Dropper popper
1. Chemical to radiant
2. Radiant to electrical
3. Elastic to mechanical (gravitational/sound)
A ball is thrown into the air and reaches a maximum height of 3m. What will be the velocity of the ball just before the instant of contact with the ground as it comes back down?
7.7m/s
CO2
How many wives did King Henry the VIII have?
6