Understanding Vectors and Motion

What is the result of adding two vectors A(3, 4) and B(1, 2)?

• (4, 6)

• (3, 5)

• (2, 3)

• (5, 6)

How do you subtract vector B(1, 2) from vector A(3, 4)?

• (2, 2)

• (4, 2)

• (3, 6)

• (1, 2)

If vector A has a magnitude of 5 and is directed east, what is the scalar multiplication of A by 2?

• The magnitude of the resulting vector is 5, directed east.

• The magnitude of the resulting vector is 10, directed east.

• The magnitude of the resulting vector is 2, directed east.

• The magnitude of the resulting vector is 10, directed west.

What is the formula for the resultant vector when two vectors are added?

• R = A / B

• R = A + B

• R = A - B

• R = A * B

Define uniform motion in a straight line.

• Motion at a constant speed but changing direction.

• Motion that involves acceleration in a straight line.

• Uniform motion in a straight line is motion at a constant speed along a straight path.

• Motion with varying speed along a curved path.

If a car travels 100 meters in 5 seconds, what is its speed?

• 20 meters per second

• 15 meters per second

• 30 meters per second

• 25 meters per second

What is the difference between speed and velocity?

• Speed is scalar; velocity is vector (includes direction).

• Speed includes direction while velocity does not.

• Speed is always greater than velocity.

• Velocity measures distance only.

Explain the concept of acceleration in motion.

• Acceleration is the rate of change of velocity over time.

• Acceleration is the speed of an object at a given moment.

• Acceleration is the total force acting on an object.

• Acceleration is the distance traveled divided by time.

If an object is moving with a constant speed, what is its acceleration?

• 0

• 5 m/s²

• -1

• 1

What is deceleration and how does it differ from acceleration?

• Deceleration refers to an increase in speed.

• Deceleration is the same as acceleration.

• Acceleration is always negative and deceleration is always positive.

• Deceleration is negative acceleration, indicating a decrease in speed, while acceleration indicates an increase in speed.