Newton's 2nd Law and Freefall

What is Newton's 2nd Law?

• Every action has an equal and opposite reaction

• An object at rest stays at rest, an object in motion stays in motion.

• F = ma

• Friction

If the man pushes with an equal amount of force, which object will accelerate more?

• Car because it has more mass

• Lawnmower because it has less mass

• Car because it has less mass

• Lawnmower because it has more mass

Tags

NGSS.MS-PS2-2

What unit do we measure force in?

• Kilometer/hr

• Joules

• Seconds

• Newtons

What is force?

• A push on an object

• A pull on an object

• A push or pull on an object

Tags

NGSS.5-PS2-1

The larger the mass you have the _____ force you need to change its motion.

• more
• less

Tags

NGSS.MS-PS2-2

Two students are in a baseball game. The first student hits a ball very hard and it has a greater acceleration than the second student who bunts the ball lightly.

• Newton's 1st Law
• Newton's 2nd Law
• Newton's 3rd Law

Tags

NGSS.MS-PS2-2

Acceleration is a change in...

• Inertia
• Gravity
• Velocity
• Distance

Will it take more force to push an empty shopping cart or a shopping cart that is full?

• The empty shopping cart
• The full shopping cart
• They will take the same amount of force

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

A ball is tossed upward and caught at the same position of throw. In the absence of air resistance, the speed of the ball when it is caught would be

• less than the speed it had when tossed upwards

• the same as the speed it had when tossed upwards

• more than the speed it had when tossed upwards

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

When the only force acting on an object is gravity, and an object moves through he air it is called

• momentum

• acceleration

• inertia

• free fall

Tags

NGSS.MS-PS2-4