8.1 Forces and Motion Part 1

A push or pull on an object is called a ________

• force
• speed
• vector
• exert

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

What is the net force acting on an object?

• a combination of all the forces acting on an object
• the larger force
• the smaller force
• zero

Tags

NGSS.MS-PS2-2

The tendency of an object to resist a change in its motion is called ___________________.

• inertia
• acceleration
• force
• vector

What is the relationship between mass of an object and its inertia?

• the more mass, the more inertia

• the less mass, the more inertia

• the more mass, the less inertia

• there is no relationship between mass and inertia

Force is measured in _____________________.

• Newtons
• grams
• kilograms
• liters

You are riding a bike. In which situation are the forces acting on the bike balanced?

• You pedal at constant speed.
• You pedal to speed up.
• You coast to slow down.
• You turn at a constant speed.

Tags

NGSS.MS-PS2-2

Does the following diagram show balanced or unbalanced forces? Explain how you know.

• unbalanced, net force does not equal zero, rocket moves up

• balanced, net force does not equal zero, rocket moves up

• unbalanced, net force is not zero, rocket is NOT moving

• balanced, net force equals zero, rocket is NOT moving

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

How does energy before a collision compare to energy after a collision?

• Energy is the same before a collision as after.
• Energy is greater before a collision than after.
• Energy is less before a collision than after.
• Energy is not involved in a collision.

Tags

NGSS.MS-PS3-5

When a batter hits a ball _____________________

• all of these choices
• some energy will go into the ball
• some energy will be lost to the air as heat
• some energy will slow the bat

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

What combination can cause a baseball to go far enough for a home run?

• a fast pitch and a fast swing
• a slow pitch and a fast swing
• a slow pitch and a slow swing
• a fast pitch and a slow swing

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5