Forces and Motion Unit Assessment - 7th Grade

Front

What is the force that causes everything to be pulled down to the Earth?

Back

Gravity is the force that attracts two bodies towards each other, causing objects to fall towards the Earth.

Front

When an object is getting faster, it is called....

Back

Acceleration is the rate of change of velocity of an object, indicating that it is speeding up.

Front

On which surface would a ball move slowly?

Back

A ball would move slowly on a carpet due to increased friction compared to smoother surfaces.

Front

What type of force is the moon orbiting the Earth at a constant speed?

Back

Balanced Force is when all forces acting on an object are equal, resulting in no change in motion.

Front

Calculate the Net Force: 60N, Left and 40N, Right.

Back

The Net Force is 20N, Left (60N - 40N = 20N Left).

Front

What is friction?

Back

Friction is a force that opposes the motion of an object, acting parallel to the surfaces in contact.

Front

What is kinetic energy?

Back

Kinetic energy is the energy an object possesses due to its motion, calculated as KE = 1/2 mv².

Front

What is potential energy?

Back

Potential energy is the stored energy in an object due to its position or state, such as height above the ground.

Front

What is an unbalanced force?

Back

An unbalanced force occurs when the total forces acting on an object are not equal, causing a change in motion.

Front

What is the formula for calculating net force?

Back

Net Force = Total Forces acting in one direction - Total Forces acting in the opposite direction.