Calculatiing speed and force practice

What is Newton’s 1st law?

• Inertia

• F=ma

• An object in motion or at rest stays as such unless acted upon

• For every action there is an equal and opposite reaction

The image shows a block that is being pulled along the floor. According to the image, what is the acceleration of the block? ____ m/s²

Tags

NGSS.MS-PS2-2

We use _____ as units for Force

As mass increases, and force stays constant, acceleration...

• Decreases

• Increases

• Stays the same

• There isn’t enough info to tell.

Tags

NGSS.MS-PS2-2

Which states Newton's first law?

• An object at rest will remain at rest unless a force is applied

• An object is moving

• An object has stopped

• An moving object will keep going when a force is applied to it

A skier needs to apply a force of 132 N to accelerate at a rate of 2 m/s². What is the mass of the skier? To solve this problem you must do - 

• 132 ÷ 2
• 2 ÷ 132
• 132 x 2

Tags

NGSS.MS-PS2-2

What is Newton’s 3rd law?

• For every action there is an equal and opposite reaction

• Inertia

• Force

• Force is proportional to acceleration.

Tags

NGSS.MS-PS2-1

How much more force is needed to make it move to the left

• 10 N to the left

• 10 N to the right

• 15 N to the left

• 15 N to the right

Tags

NGSS.MS-PS2-2

The formula for calculating speed is

• distance X time

• time / distance

• distance / time

• velocity / 2

Tags

NGSS.MS-PS3-1

The masses of four objects are given in this table. If all objects are struck with the same amount of force, which one will have the greatest acceleration?

• Object 1
• Object 2
• Object 3
• Object 4

Tags

NGSS.MS-PS2-2