Q4 SCIENCE REVIEWER

• what are the two UNIFORMLY ACCELERATED MOTION

  Horizontal Dimension & Vertical Dimension
• Motion describes a change in an object's position, direction, or location.
• Acceleration - is defined as the rate of change in velocity with time. It is a vector quantity having both magnitude and direction.
• speedometer - It indicates the speed of a vehicle.
• odometer - Records the distance traveled of a vehicle
• Uniform/Constant acceleration - It is a type of motion in which the velocity of an object changes by an equal amount in every equal time period.
• uniformly accelerated motion - Refers to the motion of an object that is moving with a constant acceleration. This means that the velocity of the object changes at a constant rate over time.
• Uniformly Accelerated Motion is motion of an object where the acceleration is constant.
• the trajectory of UAM is in a straight line
• the velocity of UAM is changing constantly
• Displacement refers to the change in position of an object. It is also described as the shortest straight-line distance between the object's initial and final positions
• Time elapsed time, or time interval is the time that passes during the chosen period of observation.
• Initial velocity quantifies how fast an object moves in a certain direction at the start of the elapsed time
• Final velocity describes how fast an object or body moves at the end of the elapsed time.
• Acceleration refers to the change in velocity of the object per time interval.
• Projectile motion is a form of motion where an object moves in a curved path.
• The object that is thrown or projected and exhibits projectile motion is called projectile.
• The curve-like path undertake by a projectile is called trajectory.
• An angled-launched projectile exhibits a full parabolic trajectory motion
• Horizontally Launched Projectiles

  A) height

  B) Vx

  C) Vy

  D) range

  E) range

  F) height

  
• the property of a moving object concerning its mass and velocity is referred to as momentum
• Any object will continue moving unless there is an external force that will act on it, this is called Newton's second law of motion.
• .

  A) momentum

  B) increases

  C) double

  D) equal

  E) impulse

  
• Newton’s Third law of motion states that if an object exerts a force on the other, the other object also exerts force towards it with equal magnitude.
• the total amount of momentum of the objects when they collide is conserved.
• A collision is an encounter between two objects resulting in exchange of impulse and momentum.
• The total momentum of the system before the collision is equal to the total momentum of the system after the collision
• Elastic Collision - objects that collide moves separately after collision.
• Inelastic Collision - objects that collide move together after collision.
• Mechanical energy refers to the energy possessed by an object due to its motion or position. It is the sum of two components: kinetic energy and potential energy.
• Kinetic energy is the energy possessed by an object due to its motion.
• KINETIC ENERGY : Radiant Energy, Thermal Energy, Motion, Sound Energy and Electrical Energy
• Motion: in the context of kinetic energy, refers to the energy possessed by an object due to its movement
• Radiant Energy: also known as light energy, is a form of kinetic energy associated with electromagnetic waves.
• Sound Energy: is the kinetic energy associated with the vibrations of particles in a medium, typically air.
• Electrical Energy: is the kinetic energy associated with the movement of electric charges, typically through conductors.
• Potential energy is the energy associated with an object's position or condition.
• Gravitational Potential Energy: It is the energy an object possesses due to its height in a gravitational field. For instance, a rock held high above the ground has gravitational potential energy.
• Elastic Potential Energy: It is the energy stored in an object when it is compressed or stretched. For example, a compressed spring or a stretched rubber band has elastic potential energy.
• POTENTIAL ENERGY : Chemical Energy, Nuclear Energy, Stored Mechanical Energy and Gravitational Energy