Explain why. A: Inertia is that quantity which depends solely upon mass. The more mass, the more inertia. Momentum is another quantity in Physics which depends on both mass and speed. Momentum will be discussed in a later unit.
2. "F = ma: the net force on an object is equal to the mass of the object multiplied by its acceleration." 3. "To every action there is an equal and opposite reaction." To prove the 1st law, you can see that the air released from the balloon disturbs the state of rest of the car and makes it move.
For most purposes Newton's laws of gravity apply, with minor modifications to take the general theory of relativity into account. 2. Inertia - A property of matter by which it continues in its existing state of rest or uniform motion in a straight line, unless that state is changed by an external force. 3. Potential Energy - Is the energy stored in an object due to its position in a force field or in a system due to its configuration.
For collisions, the momentum before the collision is equal to the momentum after the collision e.g. snooker balls Momentum before collision EQUALS Momentum after collision p=mv p=0 p=0 p=mv Another example is cannon before being fired and after being fired. Before the cannon is fired the momentum is zero, after it is fired the cannon ball moves forward and the cannon moves back. The momentum of the cannon ball is the same as the momentum of the cannon moving backwards. In this sort of example you should choose one direction to be positive and the other direction to be negative.
The faster the acceleration is, the less mass it is. Also physics concepts relates to mousetrap cars because in physics we learned that, in order for the mousetrap cars to move, it must have force acting upon it (ground) which pushes the car up. So both the force of the ground and the force of the mousetrap car must be equal in order for the vehicle to work go forward. Physics concepts relate to mousetrap cars because Newton’s laws are involved in these mousetrap cars. Newton’s first law states that, “everybody continues in its state of rest or uniform motion in a straight line unless it is compelled to change that state by forces impressed on it.” The mousetrap car relates to this because the mousetrap car does not move until the force of the mousetrap moves it.
F L D. F L P P 8805-6504 –7– 9. N05/4/PHYSI/SPM/ENG/TZ0/XX+ If the resultant external force acting on a particle is zero, the particle A. B. C. D. must have constant speed. must be at rest. must have constant velocity.
The maximum frictional force that must be overcome before movement is able to begin is μsFN. If you apply a constant force to pull an object along a horizontal surface at a constant speed, then the frictional force opposing the motion is equal and opposite to the applied force, Fp. Therefore, Fp = Ff. The normal force is equal and opposite to the object’s weight when the object is on a horizontal surface and the applied force is horizontal. The question to be answered by performing this lab is how can the coefficient of static and kinetic friction be determined for an object on a horizontal surface?
Cunningham I.S 234 Natalie Massry Class 832 May 22 , 2013 Science Project Definition of Collision Particles first have to collide, and only the collisions that have sufficient energy will cause a reaction. For a successful collision to occur the particles must have sufficient energy to pass the activation level. Things that alter reaction rate: Temperature: particles move faster when they have more energy, by moving faster you increase the chance that there will be a collision,
The molecules of gas have a comparatively large space between them. Conduction occurs only in solids which have closely packed molecules whose motion is restricted to vibration in the same position within the solid mass. The addition of heat energy, due to this compactness, is translated to Kinetic Energy (greater vibrational motion) which is immediately transferred to neighbouring molecules and the Heat Transfer by Conduction is Achieved. Conduction is the fastest form of Heat transfer. Convection, heat transfer in fluids (Liquids and Gases) is due to rising currents of fluid due to decrease in Density.
Mathematical Relationships The relationship between acceleration, velocity and distance will help us to model the performance of the car. Relation of force (N) to mass (kg) and acceleration (m/sec2): Relation of velocity (m/sec) to acceleration (m/sec2): Relation of distance (m) to velocity (m/sec): Drag and Wind resistance The effect of wind resistance will be modelled as the additional force which takes effect at velocities greater than v1. According to the equation Fd = Fd0 (1 + b(v �� v1)2) the drag force will increase for velocities v > v1. In this case study there will be a low velocity drag force acting on velocities 20 m/s or less and an