level: Level 1 of Physics
Questions and Answers List
level questions: Level 1 of Physics
| Question | Answer |
|---|---|
| State the defining equation for newtons second law | F= Mass x acceler |
| What is the difference between speed and velocity? | Speed is scalar (doesn't include direction) Velocity is a vector, so has it direction |
| What is the equation for speed? | Distance/Time |
| What is the unit used for weight? | Newton (N) |
| What is weight? | The force that acts on an object due to gravity and the objects mass. |
| What are the two categories that all forces can be split into? | 1.Contact Forces 2.Non-contact forces |
| What is a force? | A push or pull acting on an object due to an interaction with another object |
| Define mass | The amount of matter contained in an object |
| \What does a curved line represent on a displacement time graph? | Acceleration or deceleration |
| State Newtons third law | When two objects interact they exert forces on each other which are equal and opposite |
| State the defining equation for newtons second law | F= Mass x Acceleration (M x A) |
| What is Newton's second law for a moving object? | The object will remain at constant velocity if no other force acts on it. |
| What is newtons first law? | If the resultant force on a stationary object will remain at rest |
| What is the equation for momentum? | Momentum= Mass x Velocity |
| What is the gradient of a displacement time graph? | Velocity |
| Give an equation for acceleration | (Final velocity - initial velocity)/ Time |