Motion and Energy

A rocket accelerates from 0 to 20 km/s. Five seconds after reaching 20 km/s, the rocket is traveling at 280 km/s. What is the average acceleration of the rocket?

• 20

• 52

• 280

• 5

Tags

NGSS.HS-PS2-1

What does a speed-time graph indicate about an objects motion?

• How the distance changes over time

• How the speed changes over time

• How he speed and distance change over time

How are waves related to sound energy?

• Its carried through the air

• Waves move through the ground

• Waves move through the air

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

What is the source of energy for a space station?

• Solar panels

• Electricity, charged from wind,coal, or another source

• Gasoline

Tags

NGSS.MS-PS3-3

What is gravitational potential energy?

• Energy stored in and released from the bonds between atoms

• Potential energy stored in an object due to it's height above earth's surface

• Energy stored in and released from the nucleus of an atom

Tags

NGSS.MS-PS3-2

What is instantaneous speed?

• Speed at a specific instant in time

• The distance traveled is different each second

• The rate of change of position in which the same distance is traveled each second

What is acceleration ?

• The slowing down of an object over a period of time

• A measure of the change in velocity during a period of time

• A change in velocity during a time interval divided by the time interval during which the velocity changes

What is the formula for force?

• F=M/A
• F=A/M
• F=M*A
• F=M*F

What law is best described by inertia?

• 1st
• 2nd
• 3rd
• law of conservation of mass

• 1st
• 2nd
• 3rd
• law of motion

Tags

NGSS.MS-PS2-1