Force and Motion Review

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

• inertia
• gravity
• friction
• electricity

Which statement is true of all simple machines?

• They reduce the amount of work
• They change the distance of a force
• They change the direction of a force
• They change the amount of force required

What kind of simple machine is a bottle opener?

• lever
• wheel and axle
• pulley
• inclined plane

A force of 20 N accelerates a 2 kg object. What is the objects mass? F= m x a

• 10 N
• 10 kg
• 200 N
• 400 kg

A car starts from rest at a stop light and reaches 30 m/s in 10 s. Determine the acceleration of the car.V^final-V^inital/Time

• 300 m/s²
• 30 m/s²
• 3 m/s²
• 40 m/s²

Forces always act in equal and opposite pairs.

• Newton's 1st Law
• Newton's 2nd Law
• Newton's 3rd Law
• Newton's 4th Law

An object at rest or moving at a constant speed in a straight path will continue to do so until a net force acts upon it.

• Newton's 1st Law
• Newton's 2nd Law
• Newton's 3rd Law
• Newton's 4th Law

An object acted upon by a net force will accelerate in the direction of the force according to the equation 
Force= mass x acceleration

• Newton's 1st Law
• Newton's 2nd Law
• Newton's 3rd Law
• Newton's 4th Law

The force that acts on an object to stop its motion.

• Speed
• Friction
• Gravity
• Sunlight

Forces that have a net force that is not zero.

• Balanced force
• Unbalanced force