Untitled Lesson

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Multiple Choice

Two people are pushing on opposite sides of a box with equal force. What will happen to the box?

• A. The box will move in the direction of the stronger person’s push.

  
  

• B. The box will not move because the forces are equal.

  
  

• C. The box will spin in circles because the forces are unequal.

  
  

• D. The box will move in both directions at the same time.

  
  

Open Ended

What do you notice about the bowling ball and the pins?

Draw

Draw the motion of the marbles. Show where the marbles

started, moved, and stopped.

Open Ended

Describe energy being transfer when a slinky is pushed?

Equal forces

When the forces on an object are equal, the pattern of the object’s

motion does not change.

For example, the object stays still or keeps moving at the same speed.

Categorize

Options (16)

A book resting on a table

A car parked on a flat surface

A person sitting on a chair

A ball resting on the ground

A cup of water on a table

A laptop on a desk

A bicycle leaning against a wall

A picture frame hanging on a wall

A person pushing a heavy box

A skateboarder speeding up

A Shopping cart slowing down after being pushed

A car going uphill

A person lifting weights

A dog pulling on a leash

A flag waving in the breeze

A child on a swing being pushed

Organize these options into the right categories

Unequal forces

Equal forces

Multiple Choice

What are some examples of gravity as a force?

• A car accelerating on a highway
• Earth orbiting the Sun.

• A balloon rising in the air
• A person pushing a heavy object

Categorize

Options (16)

rubbing hands together

sliding a book across a table

braking a bicycle

walking on a rough surface

dragging a heavy object

using sandpaper on wood

tires on a road

rubbing a balloon on hair

an apple falling from a tree

the moon orbiting the Earth

a person jumping and coming back down

water flowing down a waterfall

a satellite in orbit

a ball thrown in the air

a car rolling down a hill

the tides of the ocean

Sort each example into examples of gravity or friction

Friction

Gravity

Open Ended

Why did the pin not fall over after the first attempt?

Use vocabulary words like equal and unequal forces, gravity, friction, energy transfer, and patterns of motion.

Multiple Choice

What has to be true about the forces of a person to move the box up an incline?

• The applied force must be greater than the frictional forces acting on the box.

• The box can move up the incline without any applied force.
• The applied force can be equal to the gravitational force only.
• The frictional force must be greater than the applied force.