Don't be dense!
The formula used to calculate density.
What is Density = mass ÷ volume?
The name of the process when a solid turns into a liquid.
What is melting?
What happens to an elastic object when you remove the stretching force.
What is "it returns to its original shape and length"?
The amount of energy required to raise the temperature of 1 kg of a substance by 1°C.
What is specific heat capacity?
Gas pressure is created when particles do this to the inside walls of their container.
What is collide (or bump/crash into)?
The standard scientific units for measuring density.
What are kilograms per cubic metre (kg/m³) or grams per cubic centimetre (g/cm³)?
The name of the process when a gas turns into a liquid.
What is condensation?
The word equation linking force, spring constant, and extension.
What is Force = spring constant × extension?
The standard scientific unit used to measure specific heat capacity.
What are Joules per kilogram degree Celsius (J/kg°C)?
This is the standard scientific unit used to measure pressure.
What are Pascals (Pa)? (Note: Newtons per square metre, or N/m², is also a correct equivalent!)
The piece of equipment (named after a famous Greek scientist's exclamation) used to measure the volume of an irregular solid.
What is a Eureka can (or displacement can)?
What happens to the overall mass of a substance when it changes state.
What is "it stays the exact same" (this is the conservation of mass)?
The name of the point on a graph where a spring stops stretching proportionally and permanently deforms.
What is the limit of proportionality (or elastic limit)?
In the equation Delta E=m times c times Delta theta , the Greek letter delta Delta stands for this two-word phrase.
What is "change in"? (So Delta theta means "change in temperature").
Heating a gas increases its pressure because the particles move faster and gain more of this type of energy.
What is kinetic energy?
The state of matter that is usually the most dense because its particles are packed closely together in a regular pattern.
What is a solid?
The term for when a solid turns directly into a gas, skipping the liquid phase entirely.
What is sublimation?
In the formula f=kx , this is what the letter k stands for.
What is the spring constant?
A substance with a high specific heat capacity (like water) warms up and cools down at this rate compared to a metal with a low specific heat capacity.
What is 'slowly'? (It takes a lot of energy to heat it up, and it releases a lot of energy slowly as it cools down).
If you squeeze a gas into a much smaller volume without changing the temperature, the pressure does this.
What is 'increases' (or goes up)? (Because the particles are squashed into a smaller space, they hit the walls more frequently).
The reason why ice floats on water, even though they are the same substance.
What is "because ice is less dense than liquid water" (the particles in ice form a lattice structure that spaces them further apart and dissolved gases create bubbles)?
A state of matter where electrons have been displaced, resulting in high energy ions and electrons moving quickly and giving off light.
What is plasma?
The force applied to a spring if its spring constant is 20 N/m and it is stretched by 0.5 m.
What is 10 N? (Calculated as 20 N/m × 0.5 m)
The energy needed to heat 2 kg of water (which has a specific heat capacity of 4200 J/kg°C) by 10°C.
What is 84,000 Joules (or 84 kJ)? (Calculated as: 2 kg × 4200 J/kg°C × 10°C).
This is the theoretical temperature where particles stop moving entirely, causing the gas pressure to drop to this number.
What is absolute zero (-273°C / 0oK) ?