The Great Escape

What is the name of the large artificial satellite orbiting our planet?

• the International Space Station
• the American Space Station
• the U.S. Skylab
• the Mir station

A push or pull acting on an object is called ___

• a torque
• a force
• power
• momentum

Which force keeps everything from sailing off the ground and into space?

• gravity
• static cling
• elasticity
• static electricity

When we throw something into the air, no matter what, ___

• gravity pulls it back to Earth
• gravity pulls it South
• gravity pulls it North
• it just keeps going

The speed that a rocket must have to escape from the Earth's gravity is called ___

• the break-away speed
• the departure velocity
• the escape velocity
• the liberation speed

The larger an object is, the bigger its gravitational pull is, and ___

• a larger escape velocity is needed
• a smaller escape velocity is needed
• a weaker escape velocity is needed
• a more powerful escape velocity is needed

Compared to that of the Earth, the escape velocity you need to take off from the moon is ___

• a lot more
• slightly more
• slightly less
• a lot less

The more mass that two objects have, ___

• the greater the force is between them
• the lesser the force is between them
• the greater the tension is between them
• the lesser the tension is between them

Data that supports or disputes a scientific idea is called ___

• clues
• details
• evidence
• statistics

When tossing a ping pong ball in the air, the amount of force is the cause and ___

• the mass of the ball is the effect
• the height of the ball is the event
• the height of the ball is the effect
• the mass of the ball is the event