Forces & Motion

____________ is a force that resists motion between two surfaces that are in contact.

• Friction

• Acceleration

• Inertia

• Resistance

Forces that cancel each other are called __________ forces.

• inactivated

• balanced

• null

• neutral

Something is in motion if it _________________________.

• changes position

• changes state

• changes properties

• changes distance

Tags

NGSS.MS-PS2-2

What is kinetic energy?

• The stored energy of an object due to its position or condition

• The energy that an object has due to its motion

• The energy an object has due to its existence

• The energy an object has due to its volume

Tags

NGSS.MS-PS3-4

__________________ is distance divided by time.

• Displacement

• Speed

• Velocity

• Acceleration

An object that travels 100m in 20 s has what speed?

• 200 m/s

• 5 m/s

• 2000 m/s

• 50 m/s

What is potential energy?

• The stored energy of an object due to its position or condition

• The energy that an object has due to its motion

• The energy an object has due to its speed

• The energy an object has due to its volume

Tags

NGSS.MS-PS3-2

When you graph speed, time is on the _____________.

• y-axis

• vertical axis

• x-axis

• z-axis

When unbalanced forces act on an object, _________________.

• the object accelerates

• friction becomes greater than the net force

• the object speeds up

• the net force is zero

Which of the following is not an acceleration?

• stopping your bike at an acceleration

• riding your bike straight down the street at a constant speed

• riding your bike faster when you head down a hill

• slowing your bike ride so you can make it up a hill