Selina solutions

BOOKS

1. CONCISE Physics - Middle School - 7

CHAPTERS

1. Physical Quantities and Measurement

2. Motion

3. Energy

4. Light energy

5. Heat

6. Sound

7. Electricity and Magnetism

EXERCISES

1. Objective Questions

2. Short/Long Answer Questions

3. Numericals

Q1) The length, breadth and height of a water tank are 5m,2.5m and 1.25m respectively. Calculate the capacity of the water tank in (a) m^3 (b) litre.

Q2) A solid silver piece is immersed in water contained in a measuring cylinder. The level of water rises from 50ml to 62ml. Find the volume of silver piece.

Q3) Find the volume of a liquid present in a dish of dimensions 10cm\times10cm\times5cm.

Q4) A rectangular field is of length 60m and breadth 35m. Find the area of the field.

Q5) Find the approximate area of an irregular lamina of which boundary line is drawn on the graph paper shown in fig 1.16. below.

Q6) A piece of brass of volume 30 cm3 has a mass of 252 g. Find the density of brass in (i) g cm-3, (ii) kg m-3

Q7) The mass of an iron ball is 312g. The density of iron is 7.8\ g\ cm^{-3}. Find the volume of the ball.

Q8) A cork has a volume of 25cm^3. The density of cork is 0.25\ g\ cm^{-3}. Find the mass of cork.

Q9) The mass of 5 litre of water is 5 kg. Find the density of water in g\ cm^{-3}.

Q10) A cubical tank of side 1m is filled with 800 kg of a liquid. Find (i) the volume of the tank, (ii) the density of liquid in kg\ m^{-3}

Q11) A block of iron has dimensions 2m\times0.5m\times0.25m. The density of iron is 7.8\ g\ cm^{-3}. Find the mass of block.

Q12) The mass of a lead piece is 115g. When it is immersed into a measuring cylinder, the water level rises from 20ml mark to 30ml mark. Find (i) the volume of the lead piece (ii)the density of the lead in kg\ m^{-3}

Q13) The density of copper is 8.9 g\ cm^{-3}. What will be its density in kg\ m^{-3}

Q14) A car travels a distance of 15km in 20 minute. Find the speed of the car in (i) km\ h^{-1} (ii) m\ s^{-1}

Q15) How long a train will take to travel a distance of 200 km with a speed of 60 km\ h^{-1}?

Q16) A boy travels at a speed of 10 m\ s^{-1} for 30 minute. How much distance does he travel?

Q17) Express 36 km\ h^{-1} in m\ s^{-1}.

Q18) Express 15 m\ s^{-1} in km\ h^{-1}.

Want to top your physics exam ?

Learn from an expert tutor.

Biology

Mathematics

Physics

CONCISE Physics - Middle School - 7

Physical Quantities and Measurement

Motion

Energy

Light energy

Heat

Sound

Electricity and Magnetism

Objective Questions

Short/Long Answer Questions

Numericals

Lido

Courses

Race To Space

Quick Links

Terms & Policies