WPH0 QR Dynamic Papers Physics al Edexcel

(a) (I)

2 Mark s

(a) (II)

2 Mark s

Explain why your method gives good precision.

(b) (I)

1 Mark

He uses a metre rule to mark a distance s = 1.000 m on the ramp. Estimate the

percentage uncertainty in this measurement.

(b) (II)

1 Mark

He uses a stopwatch to measure t.

State one technique he can use to reduce the uncertainty in this measurement.

1 Mark

Use his value to calculate the acceleration of the can.

2 Mark s

Estimate the overall percentage uncertainty in his value for the acceleration.

(d) (I)

1 Mark

(d) (II)

1 Mark

Calculate the percentage difference between this value for g and the accepted

value for g.

(d) (III)

1 Mark