Gravity and Mass

What keeps the planets from flying into space?

• Gravity of the Sun
• Gravity of the Earth
• Weight of the Sun
• Weight of the Earth

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

NGSS.MS-PS2-5

Planets move around the Sun in a(n) ________.

• orbit
• circle
• path
• gravity

The speed of light travels at a speed around _________.

• 6,700 mph
• 67,000 mph
• 670,000 mph
• 670,000,000 mph

Planes can travel at or faster than the speed of sound.

• True
• False

MPH stands for_______.

• Miles Per Hour
• Minutes Per Hand
• Meters Per Hour
• Miles Per Honor

When calculating the speed of an object, we use the formula _______.

• r = t/d
• t = r/d
• r = d/t
• d = r/t

When a we measure instantaneous speed, we normally use a ________.

• speedometer
• calculator
• barometer
• hydrometer

Who was the first person to measure speed?

• Isaac Newton
• Galileo Galilei
• Albert Einstein
• Capernicus

What is the fastest speed known to humans?

• Speed of Sound
• Peregrine Falcon
• Cheetah
• Speed of Light

The distance an object travels over a period of time is known as its ________ .

• instantaneous speed
• average speed
• directional speed
• timed speed