Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
23 Cards in this Set
- Front
- Back
|
What is Scalar |
Measured with numbers. |
|
|
What is Vector |
Measured with numbers and direction (North-west |
|
|
Distance What is it measured in? |
Scalar How far an object moves km, m, etc. |
|
|
Speed What is it measured in? |
Scalar The rate at which an object covers a distance km/h, m/s, etc. |
|
|
Displacement What is it measured in? |
Vector Straight-line distance km, m, etc. |
|
|
Velocity What is it measured in? |
Vector Rate at which an object's position changes. km/h, m/s, etc. |
|
|
Acceleration What is it measured in? |
Vector Rate at which an object changes its velocity m/s2 |
|
|
How do you convert km/h to m/s |
Divide by 3.6 |
|
|
Distance-time graphs measure... |
Speed |
|
|
Displacement-time graphs measure... |
Velocity |
|
|
Speed-time graphs measure... |
Acceleration |
|
|
Velocity-time graphs measure... |
Acceleration |
|
|
What does the area under a velocity-time graph measure? |
Displacement |
|
|
What is newton's first law? |
An object at rest will remain at rest unless acted upon by an unbalanced force. An object in motion with stay at the same velocity unless acted upon by an unbalanced force. |
|
|
Newton's Second Law? |
F = m x a |
|
|
Newton's Third Law? |
For every action there is an equal and opposite reaction force. |
|
|
State the forces (5) |
Driving/thrusting force Air resistance Reaction force Friction Gravity/mass |
|
|
How can something change it's velocity, while it's speed remains the same? |
It changes direction. |
|
|
What are the types of energy? |
Potential (stored) Kinetic (moving) |
|
|
How do you find mass in terms of KE? |
m = 2 x KE ---------- v2 |
|
|
How do you find velocity in terms of KE? |
|
|
|
What is force measured in? |
Newtons (N) |
|
|
What is energy measured in? |
Joules (J) |
