Kinematics

An object can be moving for 10 seconds and still have zero displacement.

• True
• False

An airplane accelerates down a runway at 3.20 m/s/s
for 8 s until it finally lifts off the ground.
Determine the velocity at take-off.

• 0.4 m/s
• 25.6 m/s
• 2.5 m/s

Tags

NGSS.HS-PS2-1

At 60 seconds, how far had this object traveled? 

• 0 m
• 10 m
• 20 m
• 40 m

Tags

NGSS.MS-PS3-1

Describe the motion

• Slow to fast;   Negative direction
• Fast to slow;   Negative direction
• Fast to slow;   Positive direction
• Slow to fast;   Positive direction

Tags

NGSS.HS-PS2-1

This is the x-tgraph of the motion of a particle. Of the four points P, Q, R,and S, the velocity vx is greatest (most positive) at

• P

• Q

• R

• S

This is the x-tgraph of the motion of a particle. Of the four points P, Q, R,and S, the speed is greatest at

• P

• Q

• R

• S

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.

Which graph represents zero acceleration (constant velocity)?

• A
• B
• C
• D

Tags

CCSS.8.EE.B.5

In the absence of air resistance, objects fall at constant 

• speed
• velocity
• acceleration
• all of the above

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-4

A car is traveling at 21.0 m/s. It slows to a stop at a constant rate over 5.00 s. How far does the car travel during those 5.00 seconds before it stops? 

• 4.20 m
• 52.5 m
• 105 m
• 158 m

Tags

NGSS.MS-PS2-2