Free Falling

The acceleration of gravity is always directed:

• upward

• downward

• it depends which way your object is moving

The change in velocity in a given time period is?

• Vi
• Vf
• a
• d

If a freely falling object were somehow equipped with a speedometer, its speed reading would increase each second by 

• about 5 m/s.
• about 10 m/s.
• about 15 m/s.
• a rate that depends on its initial speed.

Tags

NGSS.MS-PS2-2

When there is no air resistance, objects of different masses dropped from rest

• fall with equal accelerations and with equal displacements.
• fall with different accelerations and with different displacements.
• fall with equal accelerations and with different displacements.
• fall with different accelerations and with equal displacements.

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

The state that exists when the only force acting on an object is gravity is called

• free fall

• inertia

• acceleration

• momentum

Tags

NGSS.MS-PS2-2

The acceleration due to gravity near the surface of Earth is equal to

• 9.8 m/s

• 9.8 kg x m/s

• 9.8 N

• 9.8 m/s²

When an object is falling, and it reaches it's maximum speed because air resistance is equal to the force of gravity, the object has reached __________________________.

• Free Fall
• Terminal Velocity
• Projectile Motion
• Orbit

Tags

NGSS.HS-PS2-1

What force causes objects falling near Earth's surface to slow down?

• Gravity
• Air Resistance
• Centripetal Force
• Newtons

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

Units for velocity?

• N

• kg

• m/s

• m/s/s

• m

Units for distance?

• m/s

• m

• m/s/s

• N