GRADE 10 PHYSICS - MR. EMMANUEL

Both a spring balance and a chemical balance are used to measure the mass of an object

• True

• False

Either a spring balance or chemical balance may be used to measure weight

• True

• False

Hooke's law forms the basis of operation of the spring balance

• True

• False

The chemical balance works on the principle of moments

• True

• False

If the acceleration due to gravity changes, the reading of a spring balance will change but that of the chemical balance will not

• True

• False

Answer explanation

Weight depends on gravity

Mass does not depend on gravity

Fatima and Ifunaya are two friends with same mass. Fatima who is a scientist travelled to the moon for some research. What will be different between Ifunaya and Fatima's mass and weigh

• both Masses remain the same.

  Fatimas Weight will change

• both Masses remain the same.

  Fatima's weight remains the thesame

• both Masses will change.

  Both weights will change

• both Masses will change.

  Ifunaya's weight will change

Answer explanation

Mass does not change with location.

weight changes when gravity changes value.

on the moon the gravity is less than that of the earth

A micrometer screw gauge can be used to measure the internal diameter of a tube

• True

• False

Answer explanation

This is best done with a vernier calipper

Ibrahim who is one of the outstanding students in Grade 10 Physics Class in Ennyston school was asked this question. What is motion? which of this will be a correct response from him?

• Motion is running to the Physics lab to list to Mr. Emmanuel

• Motion is the process of using something to cause another something to have force

• Motion is change in position of an object with respect to time

• Motion is playing table tennis with Gabriel and Jedivine

A physical quantity is one which can me ---------------

The SI unit for mass is