Physics Concepts Quiz

What is the main difference between scalars and vectors?

• Vectors are always larger than scalars.

• Vectors have magnitude only, scalars have magnitude and direction.

• Scalars have direction, vectors do not.

• Scalars have magnitude only, vectors have magnitude and direction.

Which of the following is a scalar quantity?

• Displacement

• Force

• Acceleration

• Time

How is displacement different from distance?

• Displacement includes direction, distance does not.

• Distance includes direction, displacement does not.

• Displacement is always greater than distance.

• Distance is always greater than displacement.

What does the Pythagorean theorem help calculate in vector problems?

• The sum of two vectors

• The difference between two vectors

• The angle between two vectors

• The resultant of two perpendicular vectors

What is the primary difference between speed and velocity?

• Speed includes direction, velocity does not.

• Velocity includes direction, speed does not.

• Speed is always greater than velocity.

• Velocity is always greater than speed.

What does average velocity represent?

• The highest speed reached during a journey

• The total displacement divided by total time

• The total distance divided by total time

• The speed at a specific moment

How is acceleration defined?

• The rate of change of time

• The rate of change of distance

• The rate of change of velocity

• The rate of change of speed

What does negative acceleration indicate?

• Speeding up

• Slowing down

• Changing direction

• Constant speed

If a car changes its velocity from 0 to 4 m/s in 3 seconds, what is its acceleration?

• 1.33 m/s²

• 4 m/s²

• 0.75 m/s²

• 3 m/s²

What happens to a car's velocity if it accelerates negatively?

• It remains constant

• It increases

• It becomes zero

• It decreases