Physical Quantities and Measurement PHYSICS - Physical Quantities and Measurement

• ✓
  sink
• B
  float with some part outside the liquid
• C
  float just below the surface of liquid
• D
  float with whole of its volume above the surafce of liquid

Answer: A.

• A
  zero
• B
  more than the weight of the wood piece
• ✓
  equal to the weight of wood piece
• D
  less thsn the weight of wood piece

Answer: C.

• A
  The buoyant force on a body is equal to the volume of the liquid displaced by it '
• B
  The buoyant force on a body is equal to the volume of the body
• ✓
  The buoyant force on a body is equal to the weight of the liquid displaced by it
• D
  The buoyant force on a body is always equal to the weight of the body.

Answer: C.

• A
  the mass of density bottle is $25 g$
• ✓
  the density bottle will store $25 \ ml$ of any liquid in it
• C
  the density bottle will store $25 \ ml$ of water, but more volume of liquid denser than water.
• D
  the density bottle will store $25 \ ml$ of water, but more volume of a liquid lighter than water.

Answer: B.

• A
  Equal masses of aluminium and brass have equal volumes
• ✓
  The mass of a certain volume of brass is more than the mass of equal volume of aluminium.
• C
  The volume of a certain mass of brass is more than the volume of equal mass of aluminium.
• D
  Equal volumes of aluminium and brass have equal masses.

Answer: B.