Lesson 3. Flashcards
1
Q
What is acceleration?
A
The change in velocity per second is called acceleration.
2
Q
What is the formula for acceleration?
A
Acceleration (m/s^2) =
change in velocity (m/s) / time (s)
3
Q
COMPLETE THE SENTENCE:
It is better to say …… rather than “deceleration.”
A
Negative acceleration.
4
Q
What is the formula for change in velocity?
A
final velocity (m/s) - initial velocity (m/s)
5
Q
Is acceleration a scalar or vector?
A
A vector.
6
Q
What is the acceleration on Earth?
A
The acceleration due to gravity is 9.81 m/s^2 or about 10 m/s^2.
7
Q
(Final speed)2 - (initial speed)2 equals..
A
= 2 x acceleration × distance.
o v2-u2 = 2as
8
Q
Distance is=
A
(initial speed × time) + ½ (acceleration × time squared)
s = ut + 1/2 at2
9
Q
Final speed=
A
= initial speed + (acceleration × time).
o v= u + at
