A train travels 140 miles west in two hours. What us the velocity of the train?

• 70 mph/West
• 280 miles per hour
• 70 miles per hour

How do electricity and magnetism act on different objects? 

• They can only pull objects
• They can either push or pull object only if they touch
• They can either push or pull objects

When you ride a roller coaster, what makes your body rise out of its seat at the top of a hill?

• Inertia
• Gravity
• Friction 

Which force keeps a satellite in orbit?

• Magnetism
• Friction
• Gravity

Which complex machine uses mainly human force to operate the simple machines in it?

• Car
• Ship
• Bicycle 

Complete this sentence so it is true... The greater the net force acting on an object,

• The less the mass of the object
• The less the acceleration of the object 
• The greater the acceleration of the object 

Newton's second law of motion is...

• An object at rest wants to stay at rest
• When one object exerts a force, there is an opposite and equal force
• Force = mass x acceleration 

When a car turns LEFT, the passengers bodies will move...

• Right
• Left

A truck hits an insect. What effect does in the insect have on the truck? 

• The insect has no effect
• The insect hits the truck with less force than the force with the truck hits the insect
• The insect hit the truck with the same amount of force 

A student says that if she throws a ball in space it will not slow down as quickly as it would on Earth.

• Correct
• Incorrect