Understanding Motion and Energy Concepts

What does a distance-time graph show?

• How far an object travels over time

• The temperature of an object

• The force applied to an object

• The mass of an object

Which law is also known as the Law of Inertia?

• Newton's First Law of Motion

• Newton's Second Law of Motion

• Newton's Third Law of Motion

• Law of Conservation of Energy

What is the main difference between speed and velocity?

• Velocity includes direction, speed does not

• Speed includes direction, velocity does not

• Both are the same

• Speed is measured in kilograms

Which method of thermal energy transfer occurs through direct contact?

• Conduction

• Convection

• Radiation

• Reflection

Thermal energy always moves from:

• Warmer objects to cooler objects

• Cooler objects to warmer objects

• Objects with less mass to more mass

• Objects with more mass to less mass

What is the relationship between temperature and the kinetic energy of particles?

• Higher temperature means higher kinetic energy

• Higher temperature means lower kinetic energy

• Temperature and kinetic energy are not related

• Kinetic energy causes temperature to decrease

Tags

NGSS.MS-PS1-4

Which of the following is an example of convection?

• Boiling water in a pot

• Heating a metal rod in a flame

• Sunlight warming your skin

• Ice melting in your hand

When all substances in a system reach the same temperature, what is this state called?

• Thermal equilibrium

• Thermal expansion

• Thermal contraction

• Thermal conduction

A car travels 100 meters in 20 seconds. Then it stops for 20 seconds and travels 100 meters more for 60 second. What is its average speed?

• 5 m/s

• 20 m/s

• 0.2 m/s

• 2 m/s

If an object’s distance-time graph is a straight, sloped line, what does this indicate about its motion?

• The object is moving at a constant speed

• The object is not moving

• The object is speeding up

• The object is slowing down

Tags

NGSS.MS-PS3-1