ATOMS & PARTICLES
Almost everything is made up of?
Atom
Which law explains inertia?
Newton’s First Law
What is a force?
A push or pull
What causes static electricity?
Transfer of electrons
Which particle moves during static electricity experiments?
Electrons
Name the three main particles.
Protons, neutrons, electrons
What happens to motion when balanced forces act on an object?
Motion does not change
What happens to speed when net force increases?
Speed increases
What happens when two objects have opposite charges?
They attract
If force increases but mass stays the same, what happens to acceleration?
It increases
Which subatomic particle determines the charge of an atom?
Electron
Which law connects force, mass, and acceleration?
Newton’s Second Law
Name one force that does NOT need touching.
Gravity / Magnetism
What happens when two objects have the same charge?
They repel
A falling object speeds up as it falls. Which force causes this change in motion?
Gravity.
What is the charge of the nucleus?
positive
Which law says every action has an equal and opposite reaction?
Third Law
What force slows objects down when they rub together?
Friction
What causes an object to become electrically charged during static electricity experiments?
The transfer of electrons from one object to another.
Which law of motion explains why passengers move forward when a bus suddenly stops?
first law or law of inertia
If an atom gains electrons, what type of charge does it have?
negative
When you jump and push the ground, what pushes you back up?
The ground
An object is not moving. Can forces still be acting on it? Explain.
Yes. The forces may be balanced, resulting in no motion.
Explain why only electrons move during static electricity, not protons.
Electrons are loosely held and can move easily, while protons are tightly bound in the nucleus.
When a swimmer pushes water backward, The water pushes the swimmer forward.what law of motion explain it?
Newtons third law