A-LEVEL PHYSICS: 6.1.2: Radians (SaveMyExams) Flashcards
1
Q
in Circular Motion, it is more convenient to measure angular displacement in units of ___ rather than ___.
A
radians, degrees
2
Q
Angular Displacement, θ:
A
the Change in Angle, in radians, of a body as it rotates around a circle
3
Q
Change in Angular Displacement (Δθ) = …
A
distance travelled / radius
4
Q
radian (rad):
A
the angle subtended at the centre of a circle by an arc equal in length to the radius of the circle
5
Q
when the angle is equal to one radian, the length of the arc (Δs) is equal to…
A
the radius (r) of the circle
6
Q
equation to convert from degrees to radians:
A
θ rads = θ° * (π/180)
7
Q
360° in radians:
A
2π
8
Q
270° in radians:
A
3π/2
9
Q
180° in radians:
A
π
10
Q
90° in radians:
A
π/2
