Acceleration

What condition must be met for acceleration to exist?

• An object is moving at a high speed.

• An object's speed changes.

• An object's direction changes.

• An object's velocity changes.

Why were neither examples showing acceleration?

• The objects were moving at a constant speed and changing directions.

• The objects were moving at a constant speed in a straight line.

• The objects were speeding up.

Which of the following correctly defines velocity?

• The rate at which an object covers distance.

• The speed of an object without considering its direction.

• The speed of an object combined with its direction.

• The total distance traveled by an object.

When is an object accelerating? Choose all that apply.

• Speeding up

• Slowing down

• Changing directions

• Constant speed

In which of the following scenarios is acceleration involved?

• A car traveling in a straight line at a constant speed of 80 Kmph.

• A plane traveling in a straight line at a constant speed of 1000 Kmph.

• A body moving at a constant speed of 30 Kmph while taking a right turn.

• An object remaining stationary.

An object starts from rest and reaches a velocity of 10 m/s in 5 seconds. What is its acceleration?

• 0 m/s²

• 2 m/s²

• 5 m/s²

• 10 m/s²

An object is moving with a velocity of 4 m/s and speeds up to 14 m/s in 5 seconds. What is its acceleration?

• 1 m/s²

• 2 m/s²

• 2.8 m/s²

• 5 m/s²