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WorksheetsPhysical Science Eoc Review
Total questions: 25
Worksheet time: 46mins
What energy transformation results from fusion reactions in stars?
Nuclear energy changes to electromagnetic energy.
Nuclear energy changes to chemical energy.
Nuclear energy changes to sound energy.
Nuclear energy changes to electrical energy.
Why is it dangerous to leave an animal in a car with the windows closed in bright sunlight?
The air inside the car will absorb heat energy through conduction from the sun, increasing the temperature inside the car.
The air in the car will become dangerously cold as heat energy is transferred out of the car by radiation.
The temperature inside the car will remain equal to the air temperature outside due to a state of equilibrium that could be dangerous.
The air inside the car will absorb and hold radiant heat energy from the sun, increasing the temperature inside the car.
A substance heats and cools quickly. What do you know about this substance?
It has a low specific heat capacity.
It has a high specific heat capacity.
It is undergoing a phase change.
It is most likely water.
A teacher left a cup of hot coffee at 80°C out on the counter. After an hour, the coffee had reached room temperature of 20°C. Which description of particle motion explains this phenomenon?
The particles of hot coffee absorbed cold from the particles of air in the room.
The particles of hot coffee absorbed thermal energy from the particles of air in the room.
The particles of hot coffee transferred cold energy to the particles of air in the room.
The particles of hot coffee transferred heat energy to the particles of air in the room.
How much heat is gained when 100 g of glass warms 15°C, given a specific heat of 840 J/kg °C? Use the formula Q = mc∆T.
12.6 J
126 J
1260 J
12600 J
A child pushes a skateboard across a floor. What happens to some of the mechanical energy of the skateboard as it slows down and comes to a stop?
It disappears.
It is transformed into heat energy.
It is transformed into potential energy.
It remains as kinetic energy.
In 1 hour, a bicyclist travels 10 km north and then 6 km south. What is the average velocity of the bicyclist?
4 km/h
4 km/h north
16 km/h
16 km/h north
What is the mass of a 70-kg astronaut floating in space?
0 kg
7.14 kg
70 kg
686 kg
Which object has the most work done to it?
a 10 N box lifted 1 meter
a 50 N motorcycle lifted 0.1 meters
a 4 N book lifted 2.0 meters
a 5000 N car parked in the driveway
A car travels 30 km north in 2 hours. What are the average speed and velocity of the car?
Speed = 15 km/h; velocity = 15 km/h north
Speed = 15 km/h; velocity = 15 km north
Speed = 30 km/h; velocity = 30 km/h north
Speed = 60 km/h; velocity = 30 km north
A runner starts at the start line and runs around a 400-meter track two times, ending up back at the start line. What is the runner's distance and displacement?
distance = 400 m; displacement = 0 m
distance = 400 m; displacement = 400 m
distance = 800 m; displacement = 0 m
distance = 800 m; displacement = 800 m
What does a simple machine do?
it increases the distance but decreases the force
It changes output work to input work.
It creates new work to make the force less.
It decreases the distance and force needed to do work.
the night before running a marathon, runners often eat a big bowl of pasta. Which type of energy are they storing for the event?
chemical energy
electromagnetic energy
mechanical energy
thermal energy
Students plan an investigation to determine the average velocity of a paper airplane. Which two measurements do the students need to make?
distance and mass
displacement and time
acceleration and mass
speed and distance
