Forces
What is a Force?
A push or pull on an object
What is motion?
A change in position of an object
What is Newton’s 1st Law also called?
The Law of Inertia
What is a physical change?
A change in appearance, not substance
The Titanic kept moving after hitting the iceberg because of what law?
Newton’s 1st Law (Inertia)
What kind of force slows things down when they rub together?
Friction
What type of energy is stored and ready to move?
Potential Energy
Which law says an object will keep doing what it’s doing unless a force acts on it?
Newton’s 1st Law
What is a chemical change?
A change that makes a new substance
What force pulled people and objects downward as the ship tilted?
Gravity
What kind of force pulls all objects toward Earth?
Gravity
What type of energy is energy of movement?
Kinetic Energy
Which law says Force = Mass × Acceleration?
Newton’s 2nd Law
Ice melting into water is what type of change?
Physical Change
When people grabbed the railings to stop sliding, what force helped them?
Friction
When forces are balanced, what happens to motion?
No movement (they cancel each other out)
A lifeboat hanging before being lowered has what type of energy?
Potential Energy
Which law says for every action there’s an equal and opposite reaction?
Newton’s 3rd Law
Metal rusting on the Titanic’s wreck is what type of change?
Chemical Change
When the iceberg pushed against the Titanic and the Titanic pushed back, which law does this show?
Newton’s 3rd Law (Action–Reaction)
When a person slides down a tilted deck, what kind of force is causing movement?
An unbalanced force
A passenger sliding down the deck is showing what type of energy?
Kinetic Energy
DAILY DOUBLE! ⚡ The Titanic was moving forward when it hit the iceberg. The ship’s motion suddenly slowed, passengers were thrown forward, and the iceberg pushed back with equal force. Which Newton’s Laws were shown in this event?
All three laws!
• 1st Law – inertia kept the ship and people moving forward
• 2nd Law – the ship’s huge mass made it hard to stop
• 3rd Law – the iceberg pushed back equally
Which best compares physical and chemical changes?
Physical = same material
Chemical = new material
Which example shows potential energy turning into kinetic energy on the Titanic?
A lifeboat being lowered into the ocean