Acceleration

The acceleration of an object is the rate at which its ____________ changes over ____________.

• Speed; time

• Velocity; time

• Distance; speed

• Velocity; distance

Speeding up, slowing down, or changing direction is called:

• Velocity

• Force

• Speed

• Acceleration

The acceleration of an object is the rate at which its _________ changes over _________.

• Speed; distance

• Velocity; time

• Mass; volume

• Energy; power

If an object is speeding up, slowing down, or changing direction, this means the object is experiencing:

• Inertia

• Acceleration

• Equilibrium

• Rest

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-5

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

A large acceleration means that the object's velocity is changing:

• Slowly

• Quickly

• In small amounts

• At a constant rate

Tags

NGSS.MS-PS2-2

Which of the following is a correct unit for the acceleration of a soccer ball?

• km/h

• m/s²

• m/s

• km/hr

A small acceleration means the object's velocity is changing:

• Quickly

• At a constant rate

• Slowly

• Not at all

A car traveling 35 km/hr due north begins accelerating at -5.0 km/hr² north. After one hour, the car is traveling:

• 35 km/hr north

• 40 km/hr north

• 30 km/hr north

• 25 km/hr north

Tags

NGSS.MS-PS2-2

When an archer shoots an arrow forward, the arrow follows a curved path until it hits the ground. Which statement best explains why? (Assume air resistance is not present.)

• The arrow is speeding up

• Gravity pulls the arrow downward

• The arrow is accelerating horizontally

• The air is pushing the arrow downwards

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4