SCIENCE HOMEWORK

What is used to reduce the amount of friction between two objects?

• gravity

• force

• lubricant

• energy

The Earth's ___________ pulls all objects near Earth towards the Earth's surface.

• luster

• gravity

• friction

Friction is a force that acts in an ___________ direction of movement.

• similar
• opposite
• parallel
• west

“Ball C" is rolling across the surface, but it eventually comes to a stop. Which force is most likely responsible for this?

• gravity
• friction
• electricity
• magnetism

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.

What is the unit to MEASURE force?

• Kilogram
• Meter
• Pascal
• Newton

Why is it harder for the boy in Image B to get down the hill?

• Motion
• Friction
• Work
• Displacement

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

• unbalanced
• weak
• balanced
• Hulk Smash!

What is this tool?

• meter stick
• hammer
• spring scale
• thermometer

Which surface would have the least amount of friction?

• A road

• A carpet

• An ice skating ring

• Astro turff