Acceleration

The unit for acceleration is 

• m/s²
• m/s
• m.s²
• s/m

A car is speeding up in the same direction of motion so the acceleration is ---------

• negative
• positive

a car traveled from rest until it reached 100 m/s in 20 sec so the acceleration is ------m/s²

• 100
• 2000
• 5
• 50

Tags

NGSS.HS-PS2-1

accelration is a vector quantity

• true
• false

accelration is the change of speed i time interval

• true
• false

in slowing down motion the acceleration is always opposite direction to the velocity

• true 
• false

acceleration can be either positive or negative

• true
• false

acceleration depends on --------

• velocity only
• velocity change and direction
• direction only
• time