Kinematics

Which runner got a head start?

• red line runner

• blue line runner

Which runner is faster?

• red line runner

• blue line runner

Tags

NGSS.MS-PS3-1

A cart travels with a constant nonzero acceleration along a straight line. Which graph best represents the relationship between the distance the cart travels and the time of travel?

• 
• 
• 
• 

This position vs. time graph shows an object...

• not moving

• moving with constant velocity

• moving with changing velocity

Tags

NGSS.MS-PS3-1

What is the velocity of an object that has been falling freely in a vacuum for 2 seconds?

• 9.8 m/s down

• 10.1 m/s down

• 19.6 m/s down

• 39.2 m/s down

Tags

NGSS.MS-PS2-4

Why is the speed of objects increasing during free fall?

• They are getting heaver

• They are changing the shape

• The gravity is pulling them down

• There is no air resistance

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

NGSS.MS-PS3-5

  The left diver will have

• Greater acceleration because more gravity acting on him

• The same gravity acting on him as on the other diver

• different gravity from the other diver IF they have different mass

• less air resistance due to greater surface area

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

Velocity is the rate of change of ...

• Acceleration

• Distance

• Speed

• Position

The P-T pictured below represents the motion of the two objects, A and B. Which of the following statements is true?

• B travels the greater distance

• A has the greater speed

• A leaves the reference point at an earlier time

• Both of the objects have the same speed at the point the lines cross

• A is traveling for a longer period of time

Tags

NGSS.MS-PS3-1

What do the X-intercepts of a Position-Time graph represent?

• When the object returns to its start position

• When the object stops

• Where the object starts

• When the object is at max displacement from the start position