8th Grade Science STAAR RC2: Force, Motion, and Energy

Front

What is the total amount of forces acting on an object called?

Back

Net Force

Front

What is the force that opposes the motion of an object in contact with a surface?

Back

Frictional Force

Front

What is the force that pulls objects toward the center of the Earth?

Back

Gravitational Force

Front

What is the formula to calculate force?

Back

Force = Mass x Acceleration (F = m x a)

Front

What is the difference between balanced and unbalanced forces?

Back

Balanced forces do not change an object's motion, while unbalanced forces cause an object to accelerate.

Front

If an object has a mass of 10 kg and is accelerating at 3 m/s², what is the force acting on it?

Back

30N

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion.

Front

What is the unit of force in the International System of Units (SI)?

Back

Newton (N)

Front

What happens to the motion of an object when the net force acting on it is zero?

Back

The object remains at rest or continues to move at a constant velocity.

Front

What is the relationship between mass and acceleration when a constant force is applied?

Back

As mass increases, acceleration decreases if the force remains constant.