8.1 Forces and Motion Part 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

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

Which of the following changes occur when anunbalanced force acts on an object?

• motion
• inertia
• mass
• weight

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-1

Force is measured in _____.

• Newtons
• grams
• liters
• kilograms

Tags

NGSS.MS-PS2-4

NGSS.MS-PS2-5

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

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-PS2-2

NGSS.MS-PS2-1

How does the 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

NGSS.MS-PS2-1

NGSS.MS-PS3-4

When a batter hits a ball _____.

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

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NGSS.MS-PS3-5

The amount of matter in an object is the object's _____.

• mass
• weight
• inertia
• volume

The action of moving or changing position is _____.

• motion
• collision
• friction
• acceleration

Tags

NGSS.MS-PS2-2