What are speedometer and odometer?

Important Questions on Motion and Time

EASY

7th CBSE

IMPORTANT

Science Booster>Chapter 14 - Motion and Time>PRACTICE TIME>Q D

Define the term ‘speed’. What are different unit of speed?

MEDIUM

7th CBSE

IMPORTANT

Science Booster>Chapter 14 - Motion and Time>PRACTICE TIME>Q E

What is the time period of a simple pendulum? How would you calculate it experimentally?

MEDIUM

7th CBSE

IMPORTANT

Science Booster>Chapter 14 - Motion and Time>PRACTICE TIME>Q E

How would you measure the speed of a ball rolling on a floor?

MEDIUM

7th CBSE

IMPORTANT

Science Booster>Chapter 14 - Motion and Time>PRACTICE TIME>Q E

How can you build your own sundial?

MEDIUM

7th CBSE

IMPORTANT

Science Booster>Chapter 14 - Motion and Time>PRACTICE TIME>Q E

How was time measured when pendulum clocks were not invented? How would the time period of a simple pendulum be affected if displacement of the bob from the mean position is increased or decreased?

MEDIUM

7th CBSE

IMPORTANT

Science Booster>Chapter 14 - Motion and Time>PRACTICE TIME>Q E

How was time measured when pendulum clocks were not invented? How would the time period of a simple pendulum be affected if the length of the string is increased or decreased?

MEDIUM

7th CBSE

IMPORTANT

Science Booster>Chapter 14 - Motion and Time>PRACTICE TIME>Q F

A fish swims across the width of an $18 \mathrm{m}$ wide river in $6 \mathrm{s}$. What is the speed of the fish?

MEDIUM

7th CBSE

IMPORTANT

Science Booster>Chapter 14 - Motion and Time>PRACTICE TIME>Q F

A Santro car travelled a distance of $120$ kilometres in $3$ hours, while a Maruti Zen car travelled a distance of $150$ kilometres in $4$ hours. Which car was moving faster?