A2 level physics - Study guides, Class notes & Summaries

1. Motion in a Circle 1.1. Radians Radian: one radian is the angle subtended at the center of the circle by an arc of length equal to the radius of the circle Angular displacement: the angle through which an object moves through a circle Hence 1 revolution is 0.1sec Use angular velocity formula 2π ω = 0.1 = 62.8 Using relation between angular and linear velocity v = ωr = 62.8 × 0.2 = 12.6 ms-1 1.3. Circular Motion s = rθ

Physics 9702 A2 Level Questions & answers

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Physics 9702 A2 Level Definitions

Physics 9702 A2 Level.

Question 1 Correct 5.00 points out of 5.00 A 0.200 kg dart is fired horizontally at a speed of 2.75 m / s when it hits a 0.700 kg block ofwood suspended by a string. The nose of the dart sticks into 0.00210 m the wood. Together the dart and block swing upwards from a height of 0.0500 m above a table to 0.128 m above the table. Which of the following is the average force the dart applies to the block during impact? Select one: a. 32.4 N b. 15.1 N c. 1.36 N d. 0.872 N Straighterl...

Question 1 Correct 5.00 points out of 5.00 A 0.200 kg dart is fired horizontally at a speed of 2.75 m / s when it hits a 0.700 kg block ofwood suspended by a string. The nose of the dart sticks into 0.00210 m the wood. Together the dart and block swing upwards from a height of 0.0500 m above a table to 0.128 m above the table. Which of the following is the average force the dart applies to the block during impact? Select one: a. 32.4 N b. 15.1 N c. 1.36 N d. 0.872 N Straighterl...

Alternating current equation - I = I0 sin ωt Define the rms value of an alternating current - equal to the steady direct curent which converts electrical energy to other forms of energy at the same rate and conditions Irms = ? - I0/√2 Transformer equation - Vs/Vp = Ns/Np = Ip/Is Power loss equation - Ploss = I2R Types of rectification - Half-wave and Full-wave Define capacitance - charge stored per unit potential difference Capacitance equation for parallel plates - C = εA/d Functio...