review of FORCES

Multiple Choice

Which of the following best describes a situation with balanced forces?

• Two people pulling a rope with equal force in opposite directions, and the rope does not move.

• One person pulling a rope harder than the other, causing the rope to move.

• A ball rolling down a hill.

• A car accelerating on a highway.

Multiple Choice

What is the main difference between balanced forces and unbalanced forces?

• Balanced forces are equal in strength and opposite in direction, while unbalanced forces are not equal in strength or not opposite in direction.

• Balanced forces always move objects, while unbalanced forces never move objects.

• Balanced forces are always stronger than unbalanced forces.

• Unbalanced forces are always weaker than balanced forces.

Multiple Choice

BALANCED OR UNBALANCED?

• balanced

• unbalanced

Multiple Choice

BALANCED OR UNBALANCED?

• balanced

• unbalanced

Multiple Choice

BALANCED OR UNBALANCED?

• balanced

• unbalanced

Multiple Choice

BALANCED OR UNBALANCED?

• balanced

• unbalanced

Open Ended

Explain how you would determine if the forces acting on an object are balanced or unbalanced using examples from daily life.

Multiple Choice

If two dogs pull a bag of treats in the same direction with forces of 18 N and 12 N, what is the net force acting on the bag?

• 30 N

• 6 N

• 18 N

• 12 N

Fill in the Blank

Fill in the blank: The combination of all the forces acting on an object is called the ___.

Multiple Choice

How is net force calculated when two forces act in opposite directions?

• By adding the strengths of the forces

• By multiplying the strengths of the forces

• By subtracting the strengths of the forces

• By dividing the strengths of the forces

Fill in the Blank

Calculate the net force in the following scenario: Two people pull on a rope in opposite directions with forces of 250 N each. What is the net force?

**YOU MUST ENTER THE NUMBER THEN SPACE AND THE UNIT FORCE IS MEASURED IN.**

Fill in the Blank

Calculate the net force in the following scenario: Two people push on a box. The man is pushing with 175 N and the lady is pushing with 150 N. What is the net force?

**YOU MUST ENTER THE NUMBER THEN SPACE AND THE UNIT FORCE IS MEASURED IN.**

Fill in the Blank

Calculate the net force in the following scenario: The child is lifting a bucket into the tree house. The gravitational force of the bucket is 10 N. The force of the child pulling the bucket up is 40N. What is the net force?

**YOU MUST ENTER THE NUMBER THEN SPACE AND THE UNIT FORCE IS MEASURED IN.**

Multiple Choice

According to Newton’s third law of motion, what is the term used to describe the action-reaction forces?

• Force pairs

• Balanced forces

• Unbalanced forces

• Frictional forces

Open Ended

Explain how Newton’s third law of motion applies to the motion of a balloon when air is released from it.

Multiple Choice

Which of the following best describes Newton's Third Law of Motion as demonstrated in the situations provided?

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

• An object in motion stays in motion unless acted upon by a force.

• Force equals mass times acceleration.

• Objects at rest remain at rest unless acted upon by a force.

Drag and Drop

A ​

Placeholder

is when the forces acting on an object are not equal.

Drag these tiles and drop them in the correct blank above

unbalanced force

balanced force

gravity

push

Multiple Select

Which of the following are indicators that an object is experiencing unbalanced forces? Select all correct answers.

• A) A box is sliding across the floor at a steady speed

• B) A hockey puck is changing its direction as it hits the boards

• C) A race car is taking a curve while maintaining a constant speed.

• D) a bicyclist is coasting to a complete stop on a flat road

Multiple Choice

Sarah is playing tennis. Her opponent hits a ball toward her, which she is preparing to hit. The dotted arrow shows the magnitude and direction the ball was moving before Sarah hit it with her racket. The solid arrow shows the magnitude and direction the ball was moving after her successful hit. Question:

How did the motion of the tennis ball change when Sarah hit it with her racket?

• The ball continued moving in the same direction, and its speed increased.

• The ball continued moving in the same direction, and its speed decreased.

• The ball changed directions, and its speed increased

• The ball changed directions, and its speed stayed the same.

  
  

Dropdown

The forces acting on the cart are ​

Select answer

, causing the cart to move to the ​

Select answer

_​

Dropdown

When floating a ping pong ball with a hairdryer, which two forces are balanced?

The force pulling down​ is ​ ​

Select answer

. The force pushing up is ​

Select answer

Dropdown

Are the forces acting on the object balanced or unbalanced? The man does a flip on the fly board.

Select answer

Dropdown

If an object is not moving, the forces acting upon it are

Select answer

Dropdown

The forces acting on the parachute are ​

Select answer

The Net Force is ​​

Select answer

The parachute will ​ ​

Select answer