Physics Practice Test – Density, Relative Density, Upthrust (Questions with Answers and Explanations)

Hello and Welcome to Physics Practice Test - Density, Relative Density, Upthrust

  1. You are to attempt 5 random objectives questions ONLY.
  2. Supply Your Full Name and Location in the text box below and begin immediately.
  3. You can attempt as many times as possible

The density and weight of a body are 5000 kgm-3 and 1.0 N respectively. What is the apparent weight of the body when fully immersed in water? (JAMB 2020)

A. 1.0 N   B. 0.2 N   C. 0.8 N   D. 0.08 N

A body which weighs 50 N in air displaces 3.7 kg of water when partially immersed in water. Calculate the upthrust on the body. (JAMB 2015)

A. 37.0 N   B. 87.0 N   C. 13.0 N   D. 8.7 N

The density of water is 1 gcm-3. Calculate the change in volume when 90 g of ice is completely melted. (JAMB 2020)

A. 0 cm3   B. 9 cm3   C. 10 cm3   D. 90 cm3

An object of volume 1 m3 and mass 2 kg is totally immersed in a liquid of density 1 kgm-3. Calculate its apparent weight. [g = 10ms-2] (JAMB 2012)

A 20 N   B. 10 N   C. 2 N    D. 1 N

An object weighs 22 kg in water and 30 kg in air. What is the upthrust excited by the liquid on the object? [g = 10ms-2] (JAMB 2011)

A. 50 N   B. 520 N   C. 220 N   D. 80 N



error: Content is protected !!