IGCSE Physics F/M 2016 P2 part 1

Which is a unit of acceleration?

• B m / s

• D N/ m

An object is released from rest and falls to Earth. During its fall, the object is affected by air resistance. The air resistance eventually reaches a constant value. Which description about successive stages of the motion of the object is correct?

• A constant acceleration, then constant deceleration

• B constant deceleration, then zero acceleration

• C decreasing acceleration, then constant deceleration

• D decreasing acceleration, then zero acceleration

• A

• B

• C

• D

• A

• B

• C

• D

• A

• B

• C

• D

• A

• B

• C

• D

Which is the value of a vector quantity?

• A 200V

• C 20m/ s, east

• D 50J /(kg°C)

• a

• b

• c

• d

A weight-lifter raises a 2000N weight through a vertical height of 2.0m in 0.80s. What useful power does he develop in doing this?

• A 800W

• B 3200W

• C 4000W

• D 5000W

• A

• B

• C

• D