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WorksheetsUnit 8- Forces
Total questions: 18
Worksheet time: 11mins
Which of the following graphs best represents an object moving at a constant speed?
A straight line with a positive slope
A curved line
A horizontal line
A straight line with a negative slope
Describe how you would measure the distance and time for an object moving at a constant speed in a classroom experiment.
Use a stopwatch and a ruler
Use a thermometer and a scale
Use a compass and a protractor
Use a barometer and a hygrometer
Which of the following is a contact force?
Gravitational force
Magnetic force
Frictional force
Electrical force
Explain how magnetic force can act at a distance.
By direct contact between objects
Through the air without touching
By using a liquid medium
By using a solid medium
Plan an experiment to demonstrate the effect of gravitational force between two objects.
Use a magnet and a paperclip
Use two masses and a spring scale
Use a balloon and static electricity
Use a thermometer and a beaker of water
Which factor does NOT affect the gravitational force between two objects?
The mass of the objects
The distance between the objects
The color of the objects
The shape of the objects
Explain how the mass of two objects affects the gravitational force between them.
Greater mass results in a weaker force
Greater mass results in a stronger force
Mass does not affect gravitational force
Mass affects only one of the objects
What is the result of an unbalanced force acting on an object?
The object remains at rest
The object changes its speed or direction
The object becomes heavier
The object becomes lighter
Which of the following scenarios involves an unbalanced force?
A book resting on a table
A car accelerating on a highway
A satellite orbiting Earth at constant speed
A pendulum at its highest point
Design a simple experiment to show how an unbalanced force can change the direction of an object.
Use a ball and a ramp
Use a thermometer and a beaker
Use a magnet and a paperclip
Use a ruler and a compass
If a car travels 60 meters in 3 seconds, what is its speed? (S= D/T)
10 m/s
15 m/s
20 m/s
25 m/s
Which type of force is responsible for keeping planets in orbit around the sun?
Frictional force
Gravitational force
Magnetic force
Electrical force
How would you explain the concept of balanced and unbalanced forces to a classmate using a real-world example?
By describing a parked car and a moving car
By describing a hot stove and a cold refrigerator
By describing a loud noise and a quiet room
By describing a bright light and a dark room
The forces acting on the cart are (a) , causing the cart to move to the (b) _
as the mass of an object increases, the pull of gravity...
Increases
Decreases
Stays the same
There are some ways objects in motion are affected. _______, or pushes and pulls, affect the motion of an object.
Forces
Positions
Motions
