8th grade science: Force and Motion

How fast an object moves is called....

• speed
• velocity
• direction
• force

SPEED and a DIRECTION is called

• speed
• velocity
• direction
• force

55 mph is an example of....

• speed
• velocity
• direction
• force

55 mph north is an example of....

• speed
• velocity
• direction
• force

Which of the following IS NOT  acceleration?

• change in speed
• change in direction
• change in speed or direction
• change in mass

How can you change the motion of an object?

• change the speed
• change the direction
• change speed and direction
• all of these

What tool is used to measure FORCE?

• triple beam balance
• spring scale
• meter stick
• none of these

Force is measured in _____________.

• centimeters
• grams
• newtons
• liters

How do you know you have a BALANCED force?

• it's stationary or moving at a constant speed
• a force causes a change in position
• the speed increases

How do you know you have a UNBALANCED force?

• it's stationary or moving at a constant speed
• a force causes a change in position
• the speed increases