Linear Motion (Young Clicker Quiz)

This is a distance-versus-time graph for the motion of a particle. Of the four points P, Q, R, and S, the velocity is most positive at...

• point P

• point Q

• point R

• point S

• not enough information in the graph to decide

Tags

motion graphs

This is a distance-versus-time graph for the motion of a particle. Of the four points P, Q, R, and S, the speed is greatest at...

• point P

• point Q

• point R

• point S

• not enough information in the graph to decide

Tags

motion graphs

This is a distance-versus-time graph for the motion of a particle. Of the four points P, Q, R, and S, the acceleration is greatest at...

• point P

• point Q

• point R

• point S

• not enough information in the graph to decide

Tags

motion graphs

You toss a ball straight upward, in the positive direction. The ball falls freely under the influence of gravity. At the highest point in the ball’s motion,

• its velocity is zero and its acceleration is zero.

• its velocity is zero and its acceleration is positive (upward).

• its velocity is zero and its acceleration is negative (downward).

• its velocity is positive (upward) and its acceleration is zero.

• its velocity is positive (upward) and its acceleration is zero.

This is a motion diagram of an object moving along the x-direction with constant acceleration. The dots 1, 2, 3, … show the position of the object at equal time intervals Δt. At the time labeled 3, what are the signs of the object’s velocity, v_x and acceleration, a_x ?

• v_x < 0, a_x = 0

• v_x < 0, a_x > 0

• v_x < 0, a_x < 0

• v_x > 0, a_x > 0

• v_x > 0, a_x < 0

Tags

motion graphs

This is a motion diagram of an object moving along the x-direction with constant acceleration. The dots 1, 2, 3, … show the position of the object at equal time intervals Δt. Which of the following velocity-versus-time graphs best matches the motion shown in the motion diagram?

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Tags

motion graphs

This is a motion diagram of an object moving along the x-direction with constant acceleration. The dots 1, 2, 3, … show the position of the object at equal time intervals Δt. Which of the following acceleration-verus-time graphs best matches the motion shown in the motion diagram?

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Tags

motion graphs

An object moves along the x-axis with constant acceleration. The initial position x_i, is positive, the initial velocity, v_i, is negative, and the acceleration is positive. Which of the following velocity-versus-time graphs best describes this motion?

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Tags

motion graphs

A glider is on an inclined, frictionless track. The x-axis points downhill. At t = 0 the glider is at x = 0 and moving uphill. After reaching the high point of its motion, it moves downhill and returns to x = 0. Which of the following acceleration-versus-time graphs best matches the motion of the glider?

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Tags

motion graphs

A glider is on an inclined, frictionless track. The x-axis points downhill. At t = 0 the glider is at x = 0 and moving uphill. After reaching the high point of its motion, it moves downhill and returns to x = 0. Which of the following velocity-versus-time graphs best matches the motion of the glider?

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• 

Tags

motion graphs