Homework 4

A push or a pull is called a

• Gravity

• Force

Tags

NGSS.3-PS2-1

What is Newton's 1st Law?

• For every action there is an equal and opposite reaction.

• An object at rest will stay at rest, an object in motion will stay in motion, unless an unbalanced force acts upon it.

Tags

NGSS.3-PS2-1

What is Newton's 3rd Law?

• For every action there is an equal and opposite reaction.

• Acceleration depends on two variables, the mass of the object and the amount of force.

Tags

NGSS.MS-PS2-1

What explains why objects resist changes in their state of motion?

• gravity

• inertia

• force

• friction

Newton's first law states that an object must travel at a constant speed and in ___________, unless an unbalanced force acts on it.

• in a circle

• a wave like manner

• the same direction

Tags

NGSS.3-PS2-1

NGSS.3-PS2-2

What would happen if a ball was kicked is space?

• It continues in the same direction, speeding up as it goes.

• It continues in the same direction, speeding up as it goes.

• It continues to move in the same direction unless it hits something or is affected by gravity or another force.

Tags

NGSS.MS-PS2-2

Looking at the image. Decide if this is balanced or unbalanced.

• Unbalanced

• Balanced

Tags

NGSS.3-PS2-1

The force that prevents a ball rolling on the ground from continuing on it's path forever is...

• Friction

• Gravity

• Inertia

Tags

NGSS.MS-PS2-2

If an object is accelerating, then the forces actin on it must be:

• Balanced

• Unbalanced

Tags

NGSS.MS-PS2-2

What is the tendency of an object to resist a change in motion?

• coffee
• motion
• inertia
• gravity