Force and Motion Review 23-24

Force and Motion Review

Grade 6 OL 23-24

​I can identify and use a Newton as the unit for measuring force

No change in motion

No acceleration or turn

Only constant speed

Equal and opposite

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I can identify and describe a balanced force

Multiple Choice

If these teams 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

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
• Earth orbiting the Sun 
• A baseball that has been thrown to home plate.

Can cause a change in position, direction, speed

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​I can identify and describe an unbalanced force
I can describe motion as a change in position, a change in direction, or a change in speed caused by an unbalanced force

Multiple Choice

In a tug of war the left team pulls with a force of 200N. The right team pulls with a force of 150N. What is the resultant force?

• 50N to the left.
• 350N to the left.
• 350N to the right.
• 50N to the right.

Multiple Choice

An arm wrestling game, where equal force is applied on both sides.

• balanced

• unbalanced

Multiple Choice

When an object does not change its motion:

• Balanced forces

• Unbalanced forces

• Gravity

Multiple Choice

Are the forces acting on this object balanced or unbalanced?

• Balanced

• Unbalanced

Multiple Choice

Are the forces acting on this object balanced or unbalanced?

• Balanced

• Unbalanced

Multiple Choice

Are the forces acting on this object balanced or unbalanced?

• Balanced

• Unbalanced

Multiple Choice

You and your dad are moving the couch from one side to another. Your dad pushes with a force of 35 N to the right and you push with a force of 25 N right. What is the net force on the couch?

• 60 N right
• 10 N left
• 60 n right
• 50 N left

Movement always goes in the direction of the larger force.

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​I can predict how an unbalanced force affects position, direction, and speed of an object using force models or diagrams

Multiple Choice

A wheeled cart is moving to the right at a constant speed.  Two forces of equal magnitude are acting upon the cart. Which of the following best describes the forces and motion of the cart?

• Balanced Forces, Constant Speed
• Balanced Forces, Acceleration
• Unbalanced Forces, Constant Speed
• Unbalanced Forces, Acceleration

Multiple Choice

What is the net force?

• 40 N left
• 0 N Balalnced
• 400 N right
• 40 N right

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 up. 

Multiple Choice

two forces acting in opposite directions on an object, and do not cause a change in motion; equal in size

• Force

• Balanced Force

• Unbalanced Force

• Inertia

Multiple Choice

Which of the blocks above has balanced forces acting on it?

• A
• B
• C
• D

Multiple Choice

What is the net force?

• 400 N Up
• 400 N Down
• - 400 N Down
• 800 N Down

Multiple Choice

two forces acting on an object and causes a change in motion; not equal in size.

• Force

• Balanced Force

• Unbalanced Force

• Net Force

Multiple Choice

An airplane is travelling North through the sky at a constant speed when turbulence causes it to take a different route, changing its direction. Explain the forces at work on this plane.

• Unbalanced, because the plane is moving forward, not backwards
• Unbalanced, because the speed is constant and there is a change in direction
• Balanced, because the plane is not falling to a lower altitude
• Unbalanced, because the plane is in motion

Multiple Choice

Which could be an example of a balanced force?

• An asteroid moving at a constant speed through space 
• A car accelerating from a stop sign
• A box of dishes falling from a counter 
• A rocket taking off 

Multiple Choice

Which of the following objects will experience an unbalanced force?

• A bike rider on a smooth and level road, pedaling at a constant rate.

• A train pulling on another train, each with the same amount of force.

• A chair sitting on the floor with balanced forces acting in opposite directions.

• A ball rolling across the floor with friction acting in the opposite direction.

Using an inclined plane allows you to use less force (N) to lift objects. You are trading less force for more distance.

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I can identify an inclined plane or ramp

I can describe how inclined planes or ramps can change the amount of force on an object

Multiple Choice

What is this?

• a screw 
• a wedge
• an inclined plane

Multiple Choice

Which inclined plane requires the most effort to push the ball to the top?

Multiple Choice

Which of the following inclined planes would require the least amount of effort to lift a box?

• They all require the same amount of effort.

Multiple Choice

Which of the following is TRUE?

• Ramps increase work

• Ramps make it harder to move things

• Ramps reduce the amount of effort

• Inclined planes are only found in buildings

Multiple Choice

What is a disadvantage of using an inclined plane to lift a heavy object?

• The object must be moved a greater distance.
• It takes less effort to move the object.
• Many objects are difficult to lift straight up.
• Heavy object usually take up more space.

Multiple Choice

Which has the longer distance - straight lift from the ground directly to the back of truck or using an inclined plane?

• Straight lift
• Inclined plane
• They are the same

Multiple Choice

How does using an inclined plane make lifting a load easier?

• it makes the mass levitate upward

• it increases the effort needed to lift a mass

• it decreases the effort needed to lift a mass

• it doesn't help

Multiple Choice

The greatest amount of force is required to move the metal block up which inclined plane?

• A
• B
• C
• D

Multiple Choice

Which of the following will require the least force to move the load up the inclined plane?

Multiple Choice

The inclined plane makes work easier by __________________ the amount of effort that must be applied to raise or lower a load.

• reducing

• increasing

Multiple Choice

All of the following are examples of inclined planes EXCEPT - - -

• an escalator

• an uphill trail

• a slide

• a table

Fill in the Blanks

The force used is

N. (write the number value only in a decimal)

Multiple Choice

Is a waterslide an inclined plane?

• Yes

• No