forces review

What is the unit to MEASURE force?

• Kilogram

• Meter

• Pounds

• Newton

A ____________ is a push or a pull on an object.

• friction

• force

• magnet

• gravity

What will cause an object to move?

• Applied forces
• Balanced forces
• Unbalanced forces

What does friction produce?

• light
• sound
• heat
• gravity

The force that acts in the opposite direction of motion when two surfaces come in contact. 

• Force
• Friction
• Static
• Kinetic 

What direction does friction act relative to motion?

• in the same direction
• in the opposite direction 
• need more information
• depends on the force

Which graph best represents the relationship between the magnitude of the electrostatic force and the distance between two oppositely charged particles?

• 
• 
• 
• 

If you rub a balloon on your hair, it will stick to a wall.

Which of these objects develops a negative charge because of this rubbing action?

• wall

• your hair

• your hands

• balloon

Tyra and Mark produced static electricity in two balloons.

Which of the following is the best reason why the balloons push each other apart?

• The balloons have magnetic charges

• The balloons have no charges

• The balloons have opposite charges

• The balloons have the same charge

Tasha made this model. In her model the bulb is not lit.

Which of these statements best explains why the bulb is not lit?

• The wires are connected to the wrong battery terminals.

• The bulb is burned out.

• The switch is open.

• A wire is missing.