7th Grade DCA 2 Review | Baamboozle - Baamboozle

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

60 meters

What happens to kinetic energy when an object is cooled?

Kinetic energy decreases

How do you calculate time?

Time = Distance ÷ Speed

What's happening at D?

Object is returning to start

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

Radiation

What does Thermal Equilibrium mean?

When objects in the same system are the same temperature.

How do particles/kinetic energy react to hot temperature?

They are fast and separate

They are slow and group up

They split up but are very slow

They are frozen still

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

The object is accelerating

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

200 km

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

Conductor

Heat transfers from -

hot to hot

cold to hot

cold to cold

hot to cold

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

0 km

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

300 km/h

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

Conduction

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

3 hours

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

Faster speed

Which one is Distance?

B

What is occurring at C?

Moving further away from start quickly

Is this an example of velocity or speed? 70 mph

Speed

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

Returning toward the start

Is wood a conductor or an insulator?

Insulator

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

4 m/s

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

Velocity

Which one is Displacement?

A

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

The object is stationary/at rest

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

60 mph

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

60 km/h

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

9 km

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

14 miles

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

Radiation

What happens to kinetic energy when an object is heated?

Kinetic energy increases

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

20 m/s

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

0 meters

Is metal a conductor or an insulator?

Conductor

Define the term Distance.

The total path an object travels

What kind of material slows down heat transfer?

Insulator

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

Constant speed

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

Increasing speed (acceleration)

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

Speed

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

Convection

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

Convection

What is the difference between speed and velocity?

Velocity includes direction, speed does not

Define the term Displacement.

The straight-line distance from start to finish

What's happening at B?

Object is at rest/stationary

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

Velocity

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

Slowing down (deceleration)

How do particles/kinetic energy react to cold temperature?

They are fast and separate

They are frozen still

They split up but are very slow

They are slow and group up

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

100 meters

In which type of heat transfer do particles physically touch?

Conduction

What's happening at A?

Going away at a constant speed