Force & Motion

Which object is in motion?

• A video of a car moving

• A ball rolling down the hill

• Bowling pins in a pyramid

• A potato on the table

Why does the moon revolve around Earth and not float away in space?

• Earth's gravitational pull

• The moon does not move

• The sun makes the moon spin around Earth

Tags

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Why do our oceans have tides?

• Friction against rocks

• Gravity from the sun and the moon

• Wind

• Mountains

Tags

NGSS.MS-ESS1-1

Which is an example of work?

• Reading your science book

• Riding in the car

• Pushing a car that won't move

• Pushing a shopping cart

Tags

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Which of these is an example of friction being HELPFUL?

• A person slipping on ice

• A rock rolling down the hill

• A bowling ball easily rolling down the lane

• A man pushing a box through long grass.

(2) Mrs. Giet’s class is playing tug of war at recess. They decide to play boys against girls. There are 11 girls and 6 boys. As soon as the game began, the girls were able to move the rope to their side. Why?

• There was an equal amount of force pulling on each side making it unbalanced.

• There was an equal amount of force pushing on each side making it unbalanced.

• There was more force on the girls side making it unbalanced.

• There was less force on the girls side making it unbalanced.

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(3) Balanced forces have either a push or pull that is __________.

• Equal

• Unequal

• Hard

• Easy

(4) John was blowing a feather across the dinner table. When he was blowing with all the breathe he had in him the feather went across the entire table, but when he just blew a little it only went to the edge of his plate. What statement best describes why the feather went across the table?

• John used a strong blowing force causing the feather to travel a greater distance.

• John used a weak blowing force causing the feather to travel a greater distance.

• John used a pulling force to cause the feather to travel a greater distance.

• John is a fire breathing dragon.

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(5) Using the pictures above, determine which picture represents a balanced force.

• Picture A

• Picture B

• Picture C

• Picture D

(6) Stephanie was at the skateboard park at the top of a ramp. She was trying to decide which ramp to take her skateboard down. One ramp was 9 feet high and the other ramp was 5 feet high. She wanted to travel as far as she possibly could without having to use any pushing force. She chose the ramp that was 9 feet high. What statement explains why she chose the 9 ft. ramp to travel the greater distance?

• Stephanie knows the lower the incline the greater distance you will travel.

• Stephanie knows the higher the incline the slower you go.

• Stephanie knows the lower the incline the faster you go.

• Stephanie knows the higher the incline the greater distance you will travel.

Tags

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