Benchmark Review (2nd 9 Wks)

Acceleration is a change in...

• Inertia
• Gravity
• Velocity
• Distance

Why would one ball travel a greater distance than the other when pushed with the same amount of force?

• Different sizes
• Different weights
• Different masses
• Different forces

Which shopping cart will have more acceleration?  

• The empty shopping cart
• The shopping cart that's full
• They will be the same

A 20 kg bike accelerates at 10 m/s². What is the force?

• 25 Newtons

• 20 Newtons

• 200 Newtons

• 10 Newtons

An object of mass 10 kg is accelerated upward at 2 m/s². What force is required?

• 20 N

• 2 N

• 5 N

• 0 N

What is the unit for acceleration?

• kg

• newton

• m/s

• $m\ per\ s^2$

What is the unit for force?

• kg

• newton

• m/s

• m/s2

When an unbalanced force acts on an object, the force ______________________.

• changes the motion of the object

• is cancelled by another force

• does not change the motion of an object

• is equal to the weight of the object

Since Force = Mass * Acceleration, how would you manipulate the equation to solve for mass?

• Divide both sides of the equation by Mass
• Divide both sides of the equation by force
• Divide both sides of the equation by acceleration
• Equations cannot be manipulated

Friction is a force that...

• works against motion

• makes things faster

• makes things heavier

• is imaginary