Force and Motion STAAR Review

Front

What is gravity?

Back

Gravity is a force that pulls objects toward each other, such as the force that pulls a bicycle and rider down a hill.

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion. An object at rest stays at rest, and an object in motion stays in motion unless acted upon by a force.

Front

Why is it important to conduct multiple trials in an experiment?

Back

Conducting multiple trials makes the results more reliable by reducing the impact of errors or anomalies.

Front

What is friction?

Back

Friction is a force that opposes the motion of an object. It occurs when two surfaces come into contact.

Front

What is momentum?

Back

Momentum is the quantity of motion an object has, which depends on its mass and velocity.

Front

How does the type of surface affect friction?

Back

Different surfaces create different amounts of friction. Smooth surfaces have less friction, while rough surfaces have more.

Front

What is a spring scale used for?

Back

A spring scale is used to measure the force exerted on an object, typically in units of newtons.

Front

What happens to heavier objects when pushed with the same force as lighter objects?

Back

Heavier objects may not move as far as lighter objects because they have more inertia and may experience more friction.

Front

What is the relationship between force and motion?

Back

Force is what causes an object to move or change its motion. The greater the force applied, the greater the change in motion.

Front

What is an experimental investigation?

Back

An experimental investigation is a method of testing a hypothesis by conducting experiments and collecting data.