PHYSICS FLASHCARDS

FORMULAS

What is Temperature?

• The average kinetic energy of particles in a substance/ or heat

What is Gravitational Force?

• Force pulling objects with mass together.

What is the formula for average acceleration?

a = change in velocity over change in time

What is the SUVAT formula (No u)?

s = vt-1/2at²

What is the SUVAT formula (no a)?

s=1/2 (v-u)t

What is electromagnetic force?

• Force pulling opposite charged particle together. for example proton and neutron.

What is a strong nuclear force?

• Strongest nuclear force pulling protons and neutrons together.

What is a strong nuclear force?

• Changes the particles identity, causing beta decay.

Difference between fission and fussion?

• Fission - breaks particles apart

• Fusion - forces or pulls particles together

What is Thermal Equilibrium? Provide an example

• Two objects touch → becomes same temperature → heat stops moving

• Example - spoon in a hot chocolate

What is zero law of thermodynamics?

• When 3 objects are all in equilibrium together.

Conservation of Energy? Provide an example

• Energy cannot be destroyed nor created, only moves or changes into other types of energy.

• Rebuild lego into other things, but never lose lego

What is the difference between distance and displacement?

• Distance - Total amount travelled

• Displacement - Point A to Point B

What are Newton’s 3 laws?

1. A body will continue in a state of rest or uniform motion in a straight line, unless external net force is acted on by it.

2. Acceleration = net force over mass ( acceleration depends on its force and mass)

3. When a object pushes or pulls on another object the second object pushes or pulls back on the same force.