Forces and Simple Machines

What is the net force?

• 400 N Up
• 400 N Down
• - 400 N Down
• 800 N Down

Tags

NGSS.MS-PS2-2

The sum of all forces acting on an object and direction

• Contact Force
• Balanced Force
• Unbalanced Force
• Net Force

Tags

NGSS.MS-PS2-2

What are balanced forces?

• Forces in the same direction
• Forces of the same size
• forces of the same size in opposite directions

Tags

NGSS.3-PS2-1

The force that opposes the motion of two surfaces sliding past each other is called ___________.

• acceleration
• inertia
• friction
• unbalanced

What is the unit of force?

• Kilogram
• Meter
• Pascal
• Newton

What is it called when the force of gravity is acting on an object?

• Weight
• Sliding Friction
• Momentum
• Projectile Motion

Tags

NGSS.MS-PS2-4

What is the attraction between two objects because of their mass?

• Inertia
• Gravity
• Gravitational Force
• Weight

Tags

NGSS.MS-PS2-4

Imagine you travel to another planets. What will change as you walk around the surface of the planet- your mass or your weight?

• Mass
• Weight 
• Both 
• Neither 

Which has more mass, a kilogram of feathers or a kilogram of iron? 

• feathers 
• iron
• neither

How much does a 6.0 kg bag of bolts weigh? (w = m*g) (g = 9.81 m/s2)

• 6.0N
• 12.0N
• 58.8N
• 600N

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4