P.4B-Kinematic Equations

What happens to the velocity of a ball as it is dropped off a cliff? 

• It decreases at a uniform rate 
• It increases at a uniform rate 
• It is constant 
• It increases at a non-uniform rate

Tags

NGSS.HS-PS2-1

A car is traveling to the right with a speed of 29​​m/s when the rider slams on the accelerator to pass another car. The car passes in 110 m with constant acceleration and reaches a speed of 34m/s. We want to find the acceleration of the car as it sped up. What equation should you choose?

• v=v_o+at

• d=v_ot+1/2at²

• v²=v_o²+2ad

• d=1/2(v+v_o)t

Tags

NGSS.HS-PS2-1

Kinematic equation can only be used when you have a constant ....

• Position

• Velocity

• Acceleration

• Time

Tags

NGSS.HS-PS2-1

The unit we use to measure acceleration is ___.

• m/s

• m

• s

• m/s²

Tags

NGSS.HS-PS2-1

A ball is dropped from a building. How fast is it traveling after falling for 1.77 s? (Hint: It's a free falling object)

• 14.76 m/s

• 17.35 m/s

• 18.91 m/s

• 20.03 m/s

Tags

NGSS.HS-PS2-1

A car starts from rest and accelerates uniformly over a time of 5.21 seconds for a distance of 110 m. Determine the acceleration of the car. Choose the appropriate equation.

• v=v_o+at

• d=v_ot+1/2at²

• v²=v_o²+2ad

• d=1/2(v+v_o)t

Tags

NGSS.HS-PS2-1

The unit we use to measure speed is ___.

• m/s

• m

• s

• m/s²

Tags

NGSS.MS-PS3-1

The unit we use to measure distance is ___.

• m/s

• m

• s

• m/s²

The unit we use to measure time is ___.

• m/s

• m

• s

• m/s²

Which of the following symbols represent speed when time is zero?

• v

• v₀

• a

• x