Question 1

Given a position-time graph, what does the slope of the tangent at any point represent?

Accepted Answer

The instantaneous velocity at that point $$v_{instant}$$

Question 2

On a velocity-time graph, what does the area under the curve between $$t_1$$ and $$t_2$$ represent?

Accepted Answer

The displacement between $$t_1$$ and $$t_2$$

Question 3

If the velocity-time graph of a car is a straight line with a positive slope, what does this indicate about the car's motion?

Accepted Answer

The car is accelerating at a constant rate

Question 4

A position-time graph shows a curve that becomes steeper as time increases. What does this tell you about the object's velocity?

Accepted Answer

The object's velocity is increasing

Question 5

Given the velocity-time graph below, what is the acceleration at $$t=10 s$$?

$$	ext{Acceleration} = \frac{\Delta v}{\Delta t}

($$Refer to the graph in the image)

Accepted Answer

$$100\ 	ext{m/s}^2$$

Question 6

On a position-time graph, what does a horizontal line indicate about the object's motion?

Accepted Answer

The object is stationary

Question 7

If the slope of a velocity-time graph is negative, what does this indicate about the object's acceleration?

Accepted Answer

The object is experiencing negative acceleration (deceleration)

Question 8

A car's position-time graph is a straight line with a slope of $$2\ 	ext{m/s}. $$What is the car's velocity?

Accepted Answer

$$2\ 	ext{m/s}$$

Question 9

Which of the following statements is true about the slope of a position-time graph?

Accepted Answer

A steeper slope indicates a higher magnitude of velocity

Question 10

If a velocity-time graph shows a curve that flattens out as time increases, what does this indicate about the object's acceleration?

Accepted Answer

The object's acceleration is decreasing

Question 11

A runner's velocity-time graph shows a constant positive value. What does this mean about the runner's motion?

Accepted Answer

The runner is moving at a constant velocity

Question 12

If the position-time graph of a cyclist is a straight line sloping downward, what does this indicate?

Accepted Answer

The cyclist is moving in the negative direction at constant velocity

Question 13

Which formula correctly relates acceleration to the slope of a velocity-time graph?

Accepted Answer

$$a = \frac{\Delta v}{\Delta t}$$

Question 14

A car starts from rest and its velocity-time graph is a straight line passing through the origin with a slope of $$5\ 	ext{m/s}^2. $$What is the car's acceleration?

Accepted Answer

$$5\ 	ext{m/s}^2$$

Question 15

If the velocity-time graph of a moving object is a horizontal line at $$v = 0$$, what does this indicate?

Accepted Answer

The object is stationary

Question 16

A position-time graph for a ball thrown upward shows a curve that rises, flattens, and then falls. What does the flattening of the curve at the top represent?

Accepted Answer

The ball's velocity is zero at the peak

Question 17

Which of the following best describes the relationship between the slope of a position-time graph and the slope of a velocity-time graph?

Accepted Answer

The slope of the position-time graph gives velocity; the slope of the velocity-time graph gives acceleration

Question 18

A car's velocity-time graph shows a line that starts at $$v=20\ 	ext{m/s}$$ and decreases linearly to $$v=0\ 	ext{m/s}$$ over $$10$$ seconds. What is the car's acceleration?

Accepted Answer

$$a = \frac{0 - 20}{10} = -2\ 	ext{m/s}^2$$

Question 19

If the slope of a tangent to a position-time graph at $$t=5 s is$$ $$-3\ 	ext{m/s}$$, what is the instantaneous velocity at that time?

Accepted Answer

$$-3\ 	ext{m/s}$$

Question 20

A velocity-time graph for a train shows a constant slope of $$4\ 	ext{m/s}^2$$ for $$5$$ seconds. What is the change in velocity over this interval?

Accepted Answer

$$\Delta v = a \Delta t = 4 	imes 5 = 20\ 	ext{m/s}$$

Understanding Position-Time and Velocity-Time Graphs in Kinematics

스터디 가이드 - 연습 문제

학습 가이드 - 플래시카드