Newton’s Laws

The Lowe’s NASCAR car travels 210m east in 5 seconds. What is the driver’s velocity as it leads the race?

• 42 m/s
• 42 m/s East

• 50 m/s
• 30 m/s

Vin Diesel is falling out of a plane. Gravity is pulling him down with a force of 120 N. His parachute is pulling him up with a force of 80 N. What is his net force?

• 40 N Up

• 10 N Down

• 40 N Down

• 0 N

Tags

NGSS.MS-PS2-2

You are playing golf and you drive the ball across the fairway. It comes to a stop on the green just before the hole. The ball rolls to a stop because...

• of the push force of gravity

• it has more mass than the blades of grass

• of the presence of friction

• of motion

Tags

NGSS.MS-PS3-5

A CHANGE in how fast something is moving is called...

• speed

• velocity

• direction

• acceleration

Tags

NGSS.MS-PS2-2

According to Newton’s Law of Inertia, an object that is moving will change its motion only if what kinds of forces act on it?

• Constant forces

• Unbalanced forces

• Strong forces

• Balanced forces

Tags

NGSS.MS-PS2-2

What is the net force & direction of movement of the system in the diagram above?

• 0 Newtons

• 20 Newtons, left

• 20 Newtons, right

• 90 Newtons, left

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

How are net force determined for two forces that act in the same direction?

• The forces are added together.

• The forces are multiplied together.

• The larger force is divided by the smaller force.

• The smaller force is subtracted from the larger force.

Tags

NGSS.MS-PS2-2

A push or pull that changes an object’s motion is called a ____________ and this change in an object’s speed or direction is called ______________.

• Force; acceleration

• Velocity; speed

• Acceleration; force

• Inertia; acceleration

Newton’s First Law of Motion, applied to a book sitting on a table, would explain that the book will not move because which of the following is occurring?

• Gravity acting on the book is zero.

• Unbalanced forces are acting on the book.

• The net force of all forces acting on the book is zero.

• Friction is being exerted on the book.

Objects tend to keep on doing what they are doing. This natural tendency to resist change in motion is called ___________.

• inertia

• acceleration

• friction

• momentum