Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Mechanics (maths)
| Question | Answer |
|---|---|
| Define particle | Entire mass concentrated at a single point, no air resistance |
| Define lamina | Two dimensional body, all weight acts through a single plane |
| Define uniform body | Body with constant density |
| What is the difference between a smooth surface and a rough surface | Smooth- No friction Rough- Friction acts |
| Define light object | Object with no mass |
| Define inextensible string | String with fixed length, impossible to stretch |
| Define rigid body | Body with a fixed shape |
| What is the gradient of a distance time graph | Velocity |
| What is the equation for Average velocity | Average velocity= Displacement from starting point/time |
| Define acceleration | Rate of change of velocity |
| What is the area under a velocity time graph | Displacement |
| What are the 5 suvat equations | v=u+at s=(u+v/2)t v^2=u^2=2as s=ut+0.5at^2 s=vt-0.5at^2 |
| What is the value of acceleration due to gravity | 9.8m/s |
| What is newtons first law | An object at rest will stay at rest and an object moving at constant velocity will continue to move at constant velocity until an unbalanced force acts on the object |
| Define resultant force | The overall force acting on an object |
| What is the equation for newtons second law | F=ma |
| What is Newtons 3rd law | For every action there is an equal and opposite reaction |
| What is the equation for a moment | Moment=Fd |
| What is the resultant moment of a body in equilibrium | 0 |
| Where is the centre of mass for a uniform object | At the midpoint |
| If a rigid body is on the point of tilting about a pivot, what is the reaction at any other support | 0 |
| What do you do to solve problems involving inclined planes | Resolve parallel and perpendicular to the slope |
| What is the equation for Fmax | Fmax=μR |
| How do we model horizontal motion of a projectile | As having constant velocity |
| How do we model vertical motion of a projectile | With constant acceleration due to gravity |
| What is the equation for time of flight | T=2usinα/g |
| What is the equation for range of flight | R=(u^2)sin2α/g |
| What is the equation relating height of an object to its horizontal displacement | y=xtanx-(gx^2/2u^2)(1+tan^2(α)) |
| How can we tell that a particle is in static equilibrium | It is at rest and the resultant force acting on it acting on it is zero |
| How do you solve problems in statics you should | -Draw a diagram -Resolve forces either horizontal and vertical componentises or parallel and perpendicular to the plane -The sum of forces in each direct is equal to zero -Solve the resulting equations |
| When is the maximum value of friction reached | When the body is on the point of moving (in limiting equilibrium) |
Created by:
Liam P
Popular Math sets