1.2 Motion Flashcards
1
Q
What is the formula for acceleration?
A
2
Q
How do you calculate acceleration on a speed-time graph?
A
Find the gradient - vertical distance / horizontal distance at a given point
3
Q
What is Earth’s gravitational field stength?
A
9.81N/kg
4
Q
What is the acceleration of free fall (on Earth) in the absence of air resistance?
A
9.81 m/s^2
5
Q
What is the formula for weight?
A
W = mg (Weight = mass x gravitational field strength)
6
Q
What is terminal velocity?
A
When the downwards force of weight and the upwards force of air resistance are balanced and so speed is constant
