4TH

• MEASUREMENT - Size / magnitude of something
• International System of Units - It is the modern form of the metric system and the world’s most widely used system of measurement.
• Conversion of units - The process of changing a quantity from one unit of measurement to another while maintaining the same value
• SCIENTIFIC NOTATION - Is the way of expressing numbers that are very large or very small in a concise and standardized format
• PROJECTILE MOTION - Form of motion experienced by objects that are thrown into the air, typically at an angle with respect to the horizontal
• Projectile - An object that is thrown or projected into the air and moves under the influence of gravity alone
• Trajectory - The curved path followed by a projectile
• Range - The horizontal distance traveled by the projectile from the launch point to the point that it reaches the ground
• Launch angle - The angle at which a projectile is initially launched relative to the horizontal
• Horizontal motion – The object moves horizontally at a constant velocity, unaffected by gravity, unless acted upon by any external force
• Vertical motion - The object moves vertically under influence of gravity, accelerating downward at a constate rate of -9.8 m/s^2
• Momentum - A mass in motion
• Impulse - The change in the momentum of an object
• Impulse momentum theorem - Change of momentum of a system is equals to the impulse of the force that it
• Collision - Created when 2 objects crash into each other
• Inelastic Collision - Objects stick together for a moment after colliding but then separate
• Kinetic energy - Any object in motion
• Mechanical Energy - The total energy of an object due to its motion (Kinetic) and (Potential) position
• The Law of Conservation of Momentum - states that for an isolated system, the total momentum before an interaction is equal to the total momentum afters its interaction