Basic Engineering Science

What is the SI unit for Mass?

• Miligram (mg).

• KIlogram (Kg).

• Newton (N).

• Litre (ℓ).

What is the arrangement of particles for solid?

• Particles are closely packed in a disorderly arrangement.

• Particles are closely packed in orderly arrangement.

• Particles are in random arrangement.

• Particles are in orderly arrangement.

Where is the center of gravity of a symmetrical object?

• Right side of the object.

• Left side of the object.

• Bottom of the object.

• Middle of the object.

Displacement is defined as _______________.

• the shortest distance between two points

• the longest distance between two points

• the distance between two points

• all of these

When an object is at rest, there is no work done by the object because there is no _______________.

• friction exerted by the floor

• force acting on the object

• potential energy

• gravity

In order to do work, energy is _______________.

• transferred or converted

• lost or transferred

• used up

• lost

Tags

NGSS.MS-PS3-5

What does Hooke’s Law state?

• Force is inversely proportional to original length.

• Force is directly proportional to original length.

• Force is inversely proportional to extension.

• Force is directly proportional to extension.

What is the definition of heat?

• Transfer of molecules from a hot object to a colder object.

• Degree of hotness or coldness of a body or environment.

• Transfer of oxygen from a hot object to a colder object.

• Transfer of energy from a hot object to a colder object.

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

Where is the area that a magnet is strongest?

• The magnet is attracting a magnetic material.

• Magnetic field lines are far apart.

• When the magnet is suspended.

• Dense magnetic field lines.

Why is it impossible to reach 100% efficiency?

• Transfer of molecules from a hot object to a colder object.

• Transfer of energy from a hot object to a colder object.

• Losses in energy occurs during work.

• Gravitational force from the earth.

Tags

NGSS.MS-PS3-5