Kinematics Benchmark 1

What is the velocity at 6 seconds?

• 3 m/s

• 4s

• 4 m/s

• 6s

An object moves with a constant acceleration of 5 m/s2 . Which of the following statements is true?

• The object’s velocity stays the same

• The object moves 5 m each second

• The object’s acceleration increases by 5 m/s² each second

• The object’s acceleration decreases by 5 m/s² each second

• The object’s velocity increases by 5 m/s each second

An object was dropped from the roof of a building. Which of the following is true about it’s velocity with which it hit the ground?

• The velocity is positive

• The velocity is negative

• The velocity is zero

• The acceleration is zero

A baseball is dropped from the roof of a building. A second baseball is thrown down from the same roof. Which of the following statements is true about their acceleration?

• The first ball has a greater acceleration.

• The second ball has a greater acceleration

• They both have equal accelerations because they are both in a free fall

• They both hit with the same velocity

An object is released from rest and falls in the absence of air resistance. Which of the following is true about its motion?

• Its acceleration is zero

• Its acceleration is constant

• Its velocity is constant

• Its acceleration is increasing

• Its velocity is decreasing

What are the velocity and acceleration at the APEX?

• V= -1 m/s

  a= -10 m/s²

• V= almost zero

  a= 0 m/s²

• V= 0 m/s

  a= 0 m/s

• V= 0

  a= -9.8 m/s²

A football, a hockey puck, and a tennis ball all fall down in the absence of air resistance. Which of the following is true about their acceleration?

• The acceleration of the football is greater than the other two

• The acceleration of the hockey puck is greater than the other two

• The acceleration of the tennis ball is greater than the other two

• They all fall down with the same constant acceleration

• More information is required

An object accelerates from rest, with a constant acceleration of 5.0 m/s2. What will its velocity be after 20s?

• -15 m/s

• 0 m/s

• 100 m

• 100 m/s

An object is dropped from a roof. What is the initial velocity?

• We need to calculate it

• The same as acceleration due to gravity

• -9.8 m/s²

• 0 m/s

What is the acceleration due to gravity?

• 0 ms

• -9.8

• 12 m/s

• -9.8 m/s²