Unbalanced/Balanced Forces Assessment (Practice)

What is a PUSH or PULL of an object?

• Motion
• Force
• Friction
• Gravity

Are forces balanced or unbalanced when a car is moving at a constant speed in a straight line?

• Balanced
• Unbalanced

A type of friction that occurs when air pushes against a moving object causing it to decelerate.

• surface area
• air resistance
• velocity
• gravity 

Without gravity we would________. 

• Float away
• Stay in the ground
• Nothing would happen.
• I don't know

Which has more mass, Earth or the Moon?

• Earth
• Moon
• The same

Why do planets orbit the Sun?

• The Sun is the only celestial object that has a gravitational pull.

• The Sun’s chemical composition makes it attract planets.

• Only celestial bodies that emit light, like the Sun, can be at the center of an orbit.

• The Sun is the most massive object in our solar system, so it exerts the greatest gravitational pull.

The picture of the position vs. time graph shows an object that is...

• accelerating/speeding up
• moving at a constant speed 
• not moving 
• accelerating/slowing down. 

What is speed?

• how far you go

• how far you go in a certain amount of time

• how fast you accelerate

• the mass of an object

Which term means speed with a direction?

• Speeding
• Acceleration
• Velocity
• Gravity

What is mass?

• The amount of MATTER in an object.

• How much GRAVITY is pulling an object.

• A measure of the gravitational force exerted on an object.

• The speed of a given object