Forces & Newton's 1st Law

T/F Objects with balanced forces acting on them are ALWAYS stationary (not moving)

• True

• False

Tags

NGSS.MS-PS2-2

T/F A net force of zero means that the forces on an object are balanced

• True

• False

Tags

NGSS.MS-PS2-2

T/F Inertia depends on how tall an object is

• True

• False

T/F The forces acting on an accelerating train are balanced.

• True

• False

Tags

NGSS.MS-PS2-2

Which best describes a force?

• a push or a pull

• a change in velocity over time

• a speed in a certain direction

• when an object turns around

The total of all forces acting on an object is known as

• balanced forces

• net force

• acceleration

• speed

Tags

NGSS.MS-PS2-2

Forces are said to be ________ when their effects cancel each other out and there is no acceleration

• changing

• accelerating

• balanced

• unbalanced

A golf ball pushes down on a tee with a force of 15N and the tee pushes up on the ball with a force of 15N. What is the net force?

• 0 Newtons

• 15 Newtons

• 30 Newtons

• 225 Newtons

Tags

NGSS.MS-PS2-1

A dog pulls on a rope with a force of 200 N and his owner pulls on the other side of the rope with a force of 150 N. What is the net force?

• 0 Newtons

• 25 Newtons

• 50 Newtons

• 350 Newtons

Tags

NGSS.MS-PS2-2

A ladder rests on the side of a tree. Are the forces balanced or unbalanced?

• Balanced

• Unbalanced

• Not enough information to tell