Question

Q1,Airplanes fly based on

Archimedes’ principle

Bernoulli’s principle

Boyle's Law

Pascal’s principle

Q2,A large piece of chocolate is cut into small pieces. A small piece has

the same density as the larger piece

more density than the larger piece

less density than the larger piece

None of the above

Q3An object of mass 3 kg is pushed by a force of 9 N to the east a distance of 10 m and for 3 seconds. The power of the force is

9 Watt

3 Watt

90 Watt

30 Watt

Q4,If the density of air = 1.2 kg/m3, the mass of air inside a normal living room could be about

20 kg

1000 kg

2 kg

50 kg

Answer 1

Q1, Airplanes fly based on

Bernoulli’s principle

Q2, A large piece of chocolate is cut into small pieces. A small piece has

the same density as the larger piece

Q3 An object of mass 3 kg is pushed by a force of 9 N to the east a distance of 10 m and for 3 seconds. The power of the force is

Q4, If the density of air = 1.2 kg/m3, the mass of air inside a normal living room could be about

50 kg.