Kinematics: Equations of Motion

What is the name for the type of quantity that has only magnitude (size)?

• Scalar

• Vector

Kinematic equations (aka Equations of uniform motion) can only be used when you have a constant ....

• Position

• Velocity

• Acceleration

• Time

The graph represents the motion of a train travelling between two stations.

Which statement about the train is correct?

• Its acceleration takes a longer time than its deceleration.

• It travels at constant speed for less than half of its journey time.

• It travels 2000 m in the first 100 s.

• It travels 10 000 m at constant speed.

Tags

NGSS.HS-PS2-1

Which of the following is a unit for acceleration?

• km/s
• m/s²
• mi/hr
• ft

Tags

NGSS.HS-PS2-1

An airplane accelerates down a runway at 3.20 m/s² for 32.8 s until is finally lifts off the ground. Determine the distance traveled before takeoff.

Which equation is appropriate?

• v_f=v_i+at

• Δx=v_it+1/2at²

• v_f²=v_i²+2aΔX

• Δx=((v_f+v_i)/2)t

Tags

NGSS.HS-PS2-1

A roller coasters accelerates from an initial velocity of 6.0 m/s to a final velocity of 70 m/s over 4 seconds.  What's the acceleration?

• 24 m/s²
• 18 m/s²
• 16 m/s²
• 16 m/s

Tags

NGSS.HS-PS2-1

A golf ball starts with a speed of 2 m/s and slows at a constant rate of 0.5 m/s², what is its velocity after 2 s?

• 0 m/s
• 0.5 m/s
• 1 m/s
• 1.5 m/s

Tags

NGSS.HS-PS2-1

A body starts with initial velocity of 10 ms^-1 and acceleration 5 ms^-2. Find the distance covered in 5 sec

• 100

• 112.5

• 150

• 50

Tags

NGSS.HS-PS2-1

Calculate the acceleration for segment A.

• 2 m/s²
• 20 m/s²
• -2 m/s²
• 0 m/s²

Tags

NGSS.HS-PS2-1

This is a velocity-time graph.  What is the object doing in segment A?

• Positive acceleration
• Negative acceleration
• Constant Velocity
• Not moving

Tags

NGSS.HS-PS2-1