Forces

What are balanced forces?

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

How could you make an object increase its speed?

• use less force
• use more force
• use no force

for every action there is...

• An equal and opposite reaction
• An equal and different reaction
• a different force
• two more forces

In a tug of war the left team pulls with a force of 200N. The right team pulls with a force of 150N.What is the resultant force?

• 50N to the left.
• 350N to the left.
• 350N to the right.
• 50N to the right.

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 the attraction between two objects because of their mass?

• Inertia
• Gravity
• Gravitational Force
• Weight

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 

This is a rocket.The rocket pushes the fuel down.What is the other force in this interaction pair?

• The fuel pulls the rocket up.
• The fuel pushes the rocket up.
• The rocket pulls the earth up.
• The earth pulls the rocket down.

Forces that have a net force of zero ( the object is still).

• Balanced force
• Unbalanced force