Forces and Acceleration

What pulls a ball back to earth?

• Gas

• Gravity

• Friction

• Molecules

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

Newton's _______ Law of Motion means that objects at rest will stay at rest and objects in motion will stay in motion. 

• First

• Second

• Third

• Fourth

Newton's ____________ Law means that for every action there is an equal and opposite reaction. 

• First

• Second

• Third

• Fourth

Tags

NGSS.MS-PS2-1

Which will slow an object in motion?  

• Speed

• Friction

• Gravity

• Momentum

Tags

NGSS.MS-PS2-4

How many Newtons make a 1kg mass accelerate by 9.8m/s²

Tags

NGSS.MS-PS2-2

Calculate the resultant force on a sprinter if her mass is 60kg and she accelerates at 8m/s²

Tags

NGSS.MS-PS2-2

Calculate the acceleration of a car of mass 800kg if it is acted on by a resultant force of 3200N

Tags

NGSS.MS-PS2-2

The unit of Force is

The unit of acceration (tick 2)

• m/s²

• m/s

• m/s/s

• ms

when mass is constant force and accleration are...

• directly proportional

• indirectly proportional

• inversely proportional

• proportional

Tags

NGSS.MS-PS2-2