Newton's First and Second Laws

If you increase the force on an object, its acceleration

• decreases
• stays the same
• also increases
• stops

Tags

NGSS.MS-PS2-2

What is Newton's First Law

• F=ma
• Every action has an equal and opposite reaction
• An object at rest stays at rest, an object in motion stays in motion. 
• Friction 

An object in motion will stay in what kind of motion as long as the net forces acting on it are zero?

• slowing motion in a straight line
• accelerating motion in a straight line
• constant motion in a straight line
• constant motion in an unpredictable direction

Tags

NGSS.MS-PS2-2

friction is a force that acts 

• in the same direction as the motion
• opposite to the direction of the motion
• opposite to the applied forces
• the same direction as the applied force

What Unit do we Measure Force in? 

• Newtons
• Joules
• Force
• Don't know

F=Ma
An object of mass 300 kg is observed to accelerate at the rate of 4 m/s².  Calculate the force required to produce this acceleration. 

• 75 N
• .013 N
• 1200 N
• 2 N

Tags

NGSS.MS-PS2-2

What is the net force?

• 40 N left
• 0 N Balalnced
• 400 N right
• 40 N right

Tags

NGSS.MS-PS2-2

If you increase the mass on an object, its acceleration

• decreases
• stays the same
• also increases
• stops

Tags

NGSS.MS-PS2-2

A resistance to a change in motion is 

• acceleration
• inertia
• gravity
• velocity

The speed and direction of an object is it's ___________.

• Momentum

• Velocity

• acceleration

• Inertia

Tags

NGSS.MS-PS3-1