Gravity and Force Quiz

What invisible force pulls objects with mass towards each other?

• Friction

• Magnetism

• Gravity

• Air pressure

If you push a swing forward, what is the 'reaction' force according to Newton's Third Law?

• The swing stops moving.

• The swing pushes back on you.

• The swing moves faster.

• Gravity pulls the swing down.

What is expelled from a rocket's engine to create the thrust needed for movement in space?

• Air

• Water

• Exhaust gases

• Light

Olivia's ship is being pulled by Jupiter. This pull is strongest because Jupiter has a very large:

• Ring system

• Number of moons

• Mass

• Distance from the Sun

Imagine throwing a ball straight up. To make it leave Earth forever, you'd need to throw it with enough:

• Height

• Mass

• Escape velocity

• Air resistance

What is the term for the tendency of an object in motion to stay in motion in a straight line, which helps balance gravity in orbit?

• Gravity

• Inertia

• Thrust

• Velocity

In a gravity well model (like a sheet with a heavy ball), what does the heavy ball represent?

• A spaceship

• A small moon

• A massive planet (like Jupiter)

• The Sun

In an Alka-Seltzer rocket, what gas is produced that pushes the canister upwards?

• Oxygen

• Nitrogen

• Hydrogen

• Carbon dioxide

If an Alka-Seltzer rocket consistently launches higher, what might have been optimized during its construction or launch?

• The color of the canister.

• The amount of gas produced.

• The amount of water used (too much).

• The temperature of the air outside.

Gravitational attraction is weakest between objects that are:

• Very close together.

• Very massive.

• Very far apart.

• Made of the same material.