8th Grade Science Final Exam (OSE Units 1-3)

What is the SI unit for force?

• Joule

• Newton

• Watt

• Kilogram

Which of the following is a contact force?

• Gravitational force

• Magnetic force

• Frictional force

• Electric force

What happens to an object when it reaches its elastic limit?

• It returns to its original shape.

• It deforms permanently.

• It accelerates indefinitely.

• It stops moving.

In a collision, what does the term 'deformation' refer to?

• Change in color

• Change in shape

• Change in temperature

• Change in mass

Which variable is intentionally changed in an experiment?

• Dependent variable

• Independent variable

• Controlled variable

• Constant variable

What does a line of best fit on a graph represent?

• The exact data points

• The average trend of the data

• The maximum values

• The outliers

Tags

NGSS.MS-PS3-1

Which scenario best represents a contact force?

• A) A magnet attracting a nail

• B) A book resting on a table

• C) Earth pulling the moon

• D) Static electricity causing hair to rise

What type of force resists motion between two surfaces?

• Gravitational force

• Magnetic force

• Frictional force

• Electric force

What is the effect of increasing the mass of an object on its inertia?

• Inertia decreases

• Inertia remains the same

• Inertia increases

• Inertia becomes zero

Which of the following is NOT a contact force?

• Tension

• Friction

• Gravity

• Normal force

Tags

NGSS.MS-PS2-4

NGSS.MS-PS2-5