Science Vocabulary Lesson 3

​

Science Vocabulary - Lesson 3

Learning Intentions:
- I can define the words; balanced & unbalance force
- I can identify examples of a balanced or unbalanced forces.
- I can use unbalanced or balanced force in a sentence.

Fill in the Blanks

Multiple Choice

If the pushes and pulls are equal, the forces are ________.

• Balanced

• Unbalanced

Multiple Choice

Is a book on a table a balanced force?

• Yes

• No

Open Ended

Explain why a chair holding a person sitting on it doesn't move.

Multiple Choice

Forces are balanced when they are equal in ______________ but opposite in ______________.

• Force/ Direction

• Force/Size

Multiple Choice

Balanced or Unbalanced?

• Unbalanced

• Balanced

Multiple Choice

Balanced forces do/do not cause a change in motion. Unbalanced forces do/do not cause a change in motion.

• Do not; Do

• Do; Do not

Multiple Choice

Why did Izzy fall when playing tug of war?

• he tripped

• unbalanced forces

• balanced forces

• he was pushed

Multiple Choice

• Balanced

• Unbalanced

Multiple Choice

• Balanced

• Unbalanced

Multiple Choice

What will cause an object to move?

• Applied forces
• Balanced forces
• Unbalanced forces

Multiple Choice

The man is not able to push the car. Are the forces here balanced or unbalanced?

• balanced

• unbalanced

Multiple Choice

A lamp sitting on a table.

• Balanced Force

• Unbalanced Force

Multiple Choice

A book sitting on a shelf.

• Balanced Force

• Unbalanced Force

Multiple Choice

A skier skiing through flags in a race down the mountain.

• Balanced Force

• Unbalanced Force

Multiple Choice

A gymnast on a balance beam doing a back flip.

• Balanced Force

• Unbalanced Force

Multiple Choice

Which could be an example of an unbalanced force?

• A plate sitting on a dining table
• A ball at the top of a hill that is not moving
• A soccer ball kicked in space, traveling at a constant speed
• A baseball that has just been thrown to home plate.

Multiple Choice

What is true about this image?

• It shows unbalance forces.

• It shows balanced forces.

• The people on the right are winning.

• The people on the left are winning.

Multiple Choice

If these boys are pulling with the same amount of force.  What will happen?

• The boy in blue will win.
• They will not move at all.
• The boy in red will win.
• Both will fall down.

Multiple Choice

This is an example of what kind of force?

• Balanced Force
• Pushing Force
• Gravity Force
• Unbalanced Force

Multiple Choice

How will this object move? 

• It won't move. 
• It will move to the right. 
• It will move to the left. 
• It will move in both directions. 

Multiple Choice

 An arm wrestle and you won. 

• Balanced

• Unbalanced

Multiple Choice

A dog pulling on a dog toy with you and it’s a tie.

• Balanced

• Unbalanced

Multiple Choice

A birdhouse hanging on a tree

• Balanced

• Unbalanced

Multiple Choice

A tug of war with a team that fell down.

• Balanced

• Unbalanced

Multiple Choice

A cup sitting in a saucer.

• Balanced

• Unbalanced

Multiple Choice

A tennis ball going over the net

• Balanced

• Unbalanced

Multiple Choice

A bowling ball sitting on the alley

• Balanced

• Unbalanced

Multiple Choice

Peaches falling off the tree.

• Balanced

• Unbalanced

Multiple Choice

What will cause an object to move?

• Applied forces
• Balanced forces
• Unbalanced forces

Multiple Choice

The forces are ___

• equal

• not equal

Multiple Choice

The stronger force is pulling to the

• right

• left

Multiple Choice

There is ___

• motion

• no motion

Multiple Choice

The weaker force is pulling to the ____

• right

• left

Multiple Choice

A cat shoving a glass off a table

• Unbalanced force

• Balanced force

Multiple Choice

Motorcycles going at constant speed

• Unbalanced force

• Balanced force