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WorksheetsKinematyka dla klasy 7
Total questions: 20
Worksheet time: 10mins
What is linear motion?
Linear motion is the rotation of an object around a point.
Linear motion refers to the circular path of an object.
Linear motion is the movement of an object in a straight line.
Linear motion involves the oscillation of an object back and forth.
Define uniform motion.
Uniform motion is a type of motion that involves frequent stops.
Uniform motion is motion that accelerates over time.
Uniform motion is motion at a constant speed in a straight line.
Uniform motion is movement with varying speeds in a circle.
What is uniformly accelerated motion?
Motion with constant acceleration.
Motion in a straight line only.
Motion without any acceleration.
Motion with variable speed.
How do you calculate speed?
Speed = Distance / Time
Speed = Distance + Time
Speed = Distance x Time
Speed = Time / Distance
What is acceleration?
Acceleration is the speed of an object at rest.
Acceleration is the distance traveled over time.
Acceleration is the force applied to an object.
Acceleration is the change in velocity per unit time.
Give an example of linear motion in daily life.
A car driving in a straight line on a road.
A train moving in a circular track.
A bicycle turning around a corner.
A person walking in a zigzag pattern.
What is the difference between speed and velocity?
Speed measures distance; velocity measures time.
Speed is constant; velocity varies with speed.
Speed is a vector; velocity is scalar (no direction).
Speed is scalar; velocity is vector (includes direction).
Explain the concept of constant speed.
Constant speed is when an object accelerates over time.
Constant speed refers to varying distances covered in equal time.
Constant speed is the uniform motion of an object covering equal distances in equal time periods.
Constant speed is the change in velocity of an object over time.
What factors affect acceleration?
Color, shape, size, weight, texture.
Voltage, current, resistance, power, frequency.
Temperature, humidity, speed, distance, time.
Net force, mass, friction, air resistance, angle of applied force.
Describe a situation where you experience uniform motion.
Walking in a crowded area with constant speed.
Riding a bicycle at a constant speed on a straight road.
Driving a car while frequently stopping.
Running on a treadmill with varying speed.
How is kinematics used in sports?
Kinematics helps in designing sports equipment for better aesthetics.
Kinematics is used in sports to analyze motion for performance improvement and injury prevention.
Kinematics is used in sports to measure heart rates during games.
Kinematics is applied in sports to track player statistics and scores.
What is the formula for calculating distance in uniform motion?
Distance = Speed × Time
Distance = Speed + Time
Distance = Speed - Time
Distance = Time ÷ Speed
What is the unit of speed?
meters per second (m/s)
miles per minute (mi/min)
kilometers per hour (km/h)
feet per second (ft/s)
How does gravity affect motion?
Gravity causes objects to accelerate towards each other, affecting their motion by pulling them downwards and influencing their trajectories.
Gravity only affects the speed of objects, not their direction or motion.
Gravity has no effect on motion, as it only influences static objects.
Gravity repels objects away from each other, altering their paths upwards.
What is the significance of a speed-time graph?
It represents the total energy of a moving object.
It is used to calculate the average speed of an object.
The significance of a speed-time graph lies in its ability to illustrate motion characteristics, including acceleration and distance traveled.
It shows the relationship between speed and time only.
Explain how kinematics is applied in vehicle safety.
Kinematics helps in determining fuel efficiency ratings for vehicles.
Kinematics is applied to enhance engine performance and power output.
Kinematics is applied in vehicle safety to analyze crash dynamics and improve safety features.
Kinematics is used to design vehicle aesthetics and colors.
What is the difference between positive and negative acceleration?
Positive acceleration increases speed; negative acceleration decreases speed.
Positive acceleration is always constant; negative acceleration varies with time.
Positive acceleration applies only to upward motion; negative acceleration applies to downward motion.
Positive acceleration slows down motion; negative acceleration speeds up motion.
How can you measure the speed of a moving object?
Speed can be calculated by adding distance and time.
Speed can be measured using a stopwatch only.
Speed can be measured using the formula speed = distance / time.
Speed is determined by the weight of the object.
What role does friction play in motion?
Friction opposes motion and enables control over movement.
Friction enhances motion and reduces control.
Friction has no effect on the speed of movement.
Friction increases the distance an object can travel.
Describe an example of accelerated motion in nature.
A car driving at a constant speed.
A bird soaring in the sky.
A leaf floating on water.
A falling apple from a tree.
