Everyday Science MCQs

Correct answer A. mV²/r

Correct answer D. No work

Correct answer A. The tension in the string

Correct answer A. 2π radians

Correct answer B. 90°

Correct answer B. Along the tangent

Correct answer D. T = 2πr/v

Correct answer D. 57.3°

Correct answer A. Material objects and electromagnetic radiation

Correct answer D. 42000 km

Correct answer C. 24 hours

Correct answer D. 7.9 km s⁻¹

Correct answer A. K.E. of hoop = 2 × K.E. of disc

Correct answer A. It is equal to its translational K.E.

Correct answer C. 1000 µm

Correct answer C. 77

Correct answer B. 4

Correct answer D. Both A and C

Correct answer A. None

Correct answer B. Percentage uncertainties are added