Easy
How many element are on the periodic table
119
What is a food chain
A a model showing how energy flows from one energy to another
A circuit has a voltage of 10 and a resistance of 4. What would the current be in this current?
2.5A
What does a load do?
A load converts electrical energy into another usable form of energy. Light, heat, sound.
What is the biggest star in our solar system?
The sun
What is one step of the water cycle?
Condensation, evaporation, transpiration, precipitation, groundwater, surface runoff
An object has a mass of 40g and a volume of 5cm3.
What is the density of this object?
8g/cm
What is a symbiosis?
Any close long-term relationship between 2 speices.
What is the formula to find the voltage in a circuit? (ohms law)
IxR=V
What is voltage?
The driving force of electricity, difference of electrical potential energy between 2 points in a circuit.
Mixtures are composed of...
2 or more substance
How much gold is extracted per ton of rock?
1 ounce per ton
Like charges...
repell off eachother
What is ohms law?
V= IxR
R=V/I
I=V/R
What is mutualism, and an example
Mutualism is when both parties benefit from the transaction. Example: bees and flowers
The three different types of lichens are...
Fruitose lichen
Crustose lichen
Foliose lichen
What is an example of a physical property of matter?
Hardness, malleability, ductility, melting point, boiling point, crystal form, solubility, viscosity, density, colour, texture, odour, lustre, clarity, taste
What's the difference between conductors and insulators?
One allows the flow of charge, and the other blocks the flow of charge
Copper combined with what makes bronze?
Tin
1. Positive charges have a _____ mass
2. Negative charges have a _____ mass
3 .Neutral charges have a _____ mass
2. Small
3. Large