Untitled Presentation

Home

Open in new tab

Copy link

Fill in the Blank

Base your answer to the question on the graph below, which represents the relationship between velocity and time for a car moving along a straight line, and your knowledge of physics.

Determine the magnitude of the car’s acceleration during the first 6.0 seconds.

.

/

ACCELERATION - فرز المجموعات

You can open this webpage in a new tab.

Copy link

Open in new tab

Multiple Choice

What does the slope of a velocity-time graph indicate?

• Average speed

• Instantaneous speed

• Average acceleration

• Instantaneous acceleration

Multiple Choice

Calculate the acceleration for segment A.

• 2 m/s²
• 20 m/s²
• -2 m/s²
• 0 m/s²

Multiple Choice

What happens to an object's motion when the velocity is positive and the acceleration is negative?

• The object slows down.
• The object speeds up.
• The object remains at a constant velocity.
• The object remains at rest.

Multiple Choice

What happens when the velocity vector and the acceleration vector of an object in motion are in the same direction?

• The acceleration of the object increases.

• The speed of the object increases.

• The object comes to rest.

• The speed of the object decreases.

Multiple Choice

Consider the graph shown below. Which description below is consistent with the graph?

• The object moves slowly at a constant speed and then faster at a constant speed.

• The object accelerates in the positive direction and then accelerates more rapidly.

• The object moves forward, changes direction and then accelerates more rapidly.

Multiple Choice

What is the total displacement of the object represented in this motion graph?

• 5 meters
• 4 meters
• 2 meters
• 0 meters

Multiple Choice

Rearrange the equation for velocity with constant acceleration to solve for time. What is the equation?

• tf = (vf - vi) / a

• tf = vi + aΔt

• tf = vf + aΔt

• tf = vi - aΔt

Multiple Choice

Woody and Buzz falls from the sky with an initial velocity of 0, experiencing an acceleration of 9.8 m/s². If he covers a displacement of 50 meters, what is his final velocity?

Which equation should you use?

• $$v_f=v_i+at$$

• $$\Delta x=v_it+\frac{1}{2}at^2$$

• $$v_f^2=v_i^2+2a\Delta x$$

Home

Open in new tab

Copy link

Home

Open in new tab

Copy link

Multiple Choice

What is free-fall?

• The motion of an object when gravity is the only significant force acting on it.

• The motion of an object when air resistance is negligible.

• The motion of an object when it is thrown upwards.

• The motion of an object in a vacuum.

Multiple Choice

If you throw a baseball straight up, what is its vertical velocity at the highest point?

• 9.8 m/s²

• 9.8 m/s

• 0 m/s²

• 0 m/s

Multiple Choice

What would happen if the ball's acceleration at the top of its flight were also zero?

• The ball would gain downward velocity

• The ball would hover in the air

• The ball would fall immediately

• The ball would accelerate upward

Multiple Choice

A textbook is dropped from a second floor window and falls to the ground. What happens to the acceleration as the book falls to the ground

• the acceleration increases

• the acceleration decreases

• the acceleration remains constant

Multiple Choice

This graph shows the vertical velocity of an object that has been thrown in the air. The acceleration of this object is..

• constant -10 m/s/s

• increasing

• decreasing

• remaining zero