Physics True or False Quiz (Oct Revision)

In the field of optics, physicists use the length unit is angstrom.

• True

• False

The largest unit of length is the light year unit.

• True

• False

The accuracy of Metre rule is 0.01 cm.

• True

• False

If force 4 N, directed east, and a force 6 N, directed west, act on a particle, the magnitude of the resultant force is 10 N.

• True

• False

Vector subtraction is not commutative.

• True

• False

Vector subtraction is, in effect, vector addition.

• True

• False

For a motion with constant velocity, equal displacements take place in equal intervals of time.

• True

• False

Acceleration is said to be positive if the magnitude of velocity is decreasing.

• True

• False

If the speed does not change, but the direction changes, there will be acceleration.

• True

• False

If two equal and opposite forces act simultaneously on a particle at rest, the net force acting on the particle is zero.

• True

• False