Forces and Energy

What kind of forces forces cancel each other out when acting on a single object

• unbalanced

• kinetic

• balanced

• inertia

Tags

NGSS.HS-PS2-1

Team A and team B played tug-of-war. Which most likely happened if team A won?

• Team B used more force

• Teams A and B used the same amount of force

• Team A used more force

• Team A used less force

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Unbalanced forces acting on an object cause a change in the (which answer) of that object

• motion

• weight

• size

Tags

NGSS.MS-PS2-2

If two equal and opposite forces are applied to an object,

• the object moves faster

• the object moves slower

• the object does not move

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Jacob is walking a dog that is small and a dog that is large. The dogs suddenly pull in opposite directions with equal force. In which direction will Jacob be pulled?

• Toward the larger dog

• Toward the smaller dog

Which is NOT and example of a collision causing energy transfer and change in motion?

• a bat strikes a baseball

• a car crashes into a pole

• a baseball flying through the air

• a baseball hitting the ground

Tags

NGSS.MS-PS3-5

Friction during a collision causes some kinetic energy to be changed into

• heat

• electricity

• potential energy

• chemical energy

Tags

NGSS.MS-PS3-5

Objects in motion tend to stay in motion because of the property of

• gravity

• inerta

• conservation of energy

The distance traveled in an amount of time is called

• kinetic energy

• miles

• speed

• inertia

If you drop a rock in a lake, the rock will slow down because the water exerts

• less resistance

• gravity

• velocity

• drag forces

Tags

NGSS.MS-PS2-5