Class X

In physics, pressure is defined as
  1. P = A × F
  2. P = A/F
  3. P = F/A
  4. P = F/d
A bus travelling eastwards at 60 m s-1 takes 10s to come to halt, its deceleration is equal to
  1. 6 m s-1 eastward
  2. -6 m s-1 eastward
  3. 6 m s-1² eastward
  4. -6 m s-1² eastward
Standard symbol for heat capacity is
  1. H
  2. C
  3. Q
  4. E
Error due to manually stopping a stopwatch is termed as
  1. Climax error
  2. Human reaction error
  3. Human reaction time
  4. Ratability error
Formula for gravitational potential energy is
  1. Ep = mg/h, where m is mass, g is gravitational pull and is height
  2. Ep = m/gh, where m is mass, g is gravitational pull and is height
  3. Ep = mgh, where m is mass, g is gravitational pull and is height
  4. Ep = gh/m, where m is mass, g is gravitational pull and is height
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