7th Grade DCA 2 Review | Baamboozle - Baamboozle

How do particles/kinetic energy react to cold temperature?

They are slow and group up

They are fast and separate

They are frozen still

They split up but are very slow

How do particles/kinetic energy react to hot temperature?

They are fast and separate

They are slow and group up

They are frozen still

They split up but are very slow

A car travels 6 miles West and 8 miles South. What is the total distance?

14 miles

A runner travels 4 km North and 5 km East. What is the total distance?

9 km

Is this an example of velocity or speed? 70 mph

Speed

Is this an example of velocity or speed? 130 km/hr South

Velocity

Is this an example of velocity or speed? 15 mph North

Velocity

Is this an example of velocity or speed? 40 m/s

Speed

Heat transfers from -

hot to cold

cold to hot

cold to cold

hot to hot

What does Thermal Equilibrium mean?

When objects in the same system are the same temperature.

Which one is Displacement?

A

Which one is Distance?

B

What's happening at D?

Object is returning to start

What is occurring at C?

Moving further away from start quickly

What's happening at B?

Object is at rest/stationary

What's happening at A?

Going away at a constant speed

If the distance-time graph line goes downward, what does that mean?

Returning toward the start

On a speed-time graph, what does a flat line mean?

Constant speed

On a speed-time graph, what does a line going down mean?

Slowing down (deceleration)

On a speed-time graph, what does a line going up mean?

Increasing speed (acceleration)

What does a curved line upward on a distance-time graph mean?

The object is accelerating

What does a steeper line on a distance-time graph mean?

Faster speed

On a distance-time graph, what does a flat (horizontal) line mean?

The object is stationary/at rest

What happens to kinetic energy when an object is cooled?

Kinetic energy decreases

What happens to kinetic energy when an object is heated?

Kinetic energy increases

What kind of material slows down heat transfer?

Insulator

What kind of material allows heat to pass easily? Conductor or Insulator?

Conductor

Is wood a conductor or an insulator?

Insulator

Is metal a conductor or an insulator?

Conductor

In which type of heat transfer can energy travel through electromagnetic waves?

Radiation

In which type of heat transfer do fluids (liquids or gases) move in currents?

Convection

In which type of heat transfer do particles physically touch?

Conduction

What type of heat transfer is how the Sun warms the Earth?

Radiation

What type of heat transfer causes warm air to rise and cool air to sink?

Convection

What type of heat transfer happens when you touch a hot pan?

Conduction

If a car goes 10 km east then 10 km west, what is its displacement?

0 km

Define the term Distance.

The total path an object travels

A runner goes 3 laps around a track and ends where they started. What is their displacement?

0 meters

Define the term Displacement.

The straight-line distance from start to finish

What is the difference between speed and velocity?

Velocity includes direction, speed does not

How do you calculate time?

Time = Distance ÷ Speed

If a train travels 600 miles in 10 hours, what is its speed?

60 mph

A car travels at 50 km/h for 4 hours. How far did it travel?

200 km

A student runs 100 meters in 25 seconds. How fast did they travel?

4 m/s

A plane flies 900 km in 3 hours. Find its speed.

300 km/h

If you walk at 4 m/s for 15 seconds, how far do you go?

60 meters

If a car moves 200 m in 10 s, what is its speed?

20 m/s

A bike rides 30 km at 10 km/h. How long does it take?

3 hours

A runner moves at 5 m/s for 20 seconds. What distance does he travel?

100 meters

A car travels 120 km in 2 hours. What is its speed?

60 km/h