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WorksheetsForce, work and energy
Total questions: 13
Worksheet time: 7mins
What is energy?
Energy is the ability to do work.
Energy is a type of force.
Energy is a part of an element.
Energy is another name for neutrons.
How does the angle of an inclined plane affect the friction or speed of the object being pushed up on it?
The more inclined angle of the inclined plane, the more speed the object will gain
The less inclined angle of the inclined plane, the object will move slowly
The more inclined angle of the inclined plane, the less speed the object will gain
The less inclined angle of the inclined plane, the more speed the object will gain
Fill in the blank
Materials that have a __________ surface cause less friction
smooth
rough
soft
hard
In which of these is work said to have been done
Pushing a wall
Reading
Pushing a box
Standing
If the surface of the inclined plane if rough, the object being pushed up will move slowly because of
Friction
Gravity
surface tension
More force applied
__________ are some examples of inclined planes
Screw and wedge
Pulley and chair
what are examples of machines?
1. lever and pulley
2. A pair of scissors
3. A ramp
What is gravity?
A. The force that pulls objects downwards towards the center of the earth is called gravity
B. Gravity is a force that keep things in the air
C. Gravity is wind
Which is a type of form in which energy exists?
Mechanical
physical
nutrients
What will happen if there is too much friction?
Nothing will stop moving
Nothing will move
What happens when we throw a ball into the air ?
It comes back in your hand automatically
It stays in the air
It first rises up then seems to stop and falls on to the ground
Do people push in Wheel and axle
false
true
who discovered gravity
(a)
