Motion
(Distance, Speed, Time)
(Distance, Speed, Time)
The formula that relates distance and time to this quantity. ? = D/T
What is speed?
This law states that an object at rest stays at rest unless acted upon by a force.
What is Newton's First Law?
The relationship between voltage, current and resistance.
What is Ohm's Law?
The sun, wind, and water are all this kind of energy source.
What are renewable sources?
This part of a report explains what you think will happen.
What is the hypothesis?
This is the total distance travelled divided by total time taken.
This law explains why rockets launch into space.
What is Newton's Third Law?
Ohm's law shows that if resistance increases, current does this (if voltage stays the same).
What is decreases?
Efficient devices convert most of their energy into this.
What is useful energy?
Repeating results improves this quality of data.
What is reliability?
A car travels 150km in 1.5 hours. This is its average speed.
What is 100km/h?
Force equals mass times this.
What is acceleration?
This is the resistance in a circuit with 12V and 3A.
What is 4 ohms?
Fossil fuels are less sustainable because of this gas they emit.
What is carbon dioxide?
The variable you deliberately change.
What is the independent variable?
Rewriting S = D/T gives this formula for time.
What is time = distance / speed?
This explains why your body lurches forward when a car suddenly stops.
What is inertia?
You measure this using a voltmeter in parallel.
What is voltage?
A lightbulb uses 100J but only gives 25J of light. This is the efficiency.
What is 25%?
This is the way to display trends in data.
What is a line graph?
This type of graph shows acceleration as a curved line.
What is a distance-time graph?
A 15 kg object is pushed with a force of 45 N, but due to friction, it only accelerates at 2 m/s². Calculate the frictional force acting on it.
What is 15N?
In this type of circuit, if one component fails, the entire circuit stops working.
What is a series circuit?
This is how energy transforms in a coal power station.
What is chemical to thermal to mechanical to electrical energy?
In an experiment testing how light affects plant growth, the student forgot to keep the water amount constant. What type of variable error is this?
What is failure to control a controlled variable, leading to an invalid result?